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SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

0-26038

(Commission file number)

ResMed Inc

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of incorporation or organization)

98-0152841

(IRS Employer Identification No)

14040 Danielson St

Poway CA 92064-6857

United States Of America

(Address of principal executive offices)

(858) 746 2400

(Registrant’s telephone number including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No ¨

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act). Yes x No ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No x

At November 2, 2005 there were 70,830,153 shares of Common Stock ($0.004 par value) outstanding. This number excludes 2,254,918 shares held by the registrant as treasury shares.

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RESMED INC AND SUBSIDIARIES

INDEX

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Condensed Consolidated Balance Sheets (Unaudited)

(in US$ thousands, except share and per share data)

All share information has been adjusted to reflect the two-for-one stock split effected in the form of a 100% stock dividend that was declared on August 10, 2005 and distributed on September 30, 2005.

See the accompanying notes to the condensed consolidated financial statements.

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Condensed Consolidated Statements of Income (Unaudited)

(in US$ thousands, except share and per share data)

All share and per share information has been adjusted to reflect the two-for-one stock split effected in the form of a 100% stock dividend that was declared on August 10, 2005 and distributed on September 30, 2005.

See the accompanying notes to the condensed consolidated financial statements.

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Condensed Consolidated Statements of Cash Flows (Unaudited)

(in US$ thousands)

See the accompanying notes to the condensed consolidated financial statements.

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Notes to Condensed Consolidated Financial Statements

(unaudited)

ResMed Inc (the “Company”) is a Delaware Corporation formed in March 1994 as a holding company for the ResMed Group. Through our subsidiaries, we design, manufacture and market equipment for the diagnosis and treatment of sleep-disordered breathing and other respiratory disorders, including obstructive sleep apnea. Our manufacturing operations are located in Australia, Germany, France and the United States of America. Major distribution and sales sites are located in the United States of America, Germany, France, United Kingdom, Switzerland, Australia and Sweden.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X of the Securities and Exchange Commission. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation have been included. Operating results for the three months ended September 30, 2005 are not necessarily indicative of the results that may be expected for the year ending June 30, 2006.

In this report, all share numbers and per share amounts have been retroactively adjusted to reflect the two-for-one stock split effected in the form of a 100% stock dividend that was declared on August 10, 2005 and distributed on September 30, 2005.

The consolidated financial statements for the three months ended September 30, 2005 and 2004 are unaudited and should be read in conjunction with the consolidated financial statements and notes thereto included in our Form 10-K for the year ended June 30, 2005.

The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All significant inter-company transactions and balances have been eliminated in consolidation.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management estimates and assumptions that affect amounts reported in the financial statements and accompanying notes. Actual results could differ from management’s estimates.

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Notes to Condensed Consolidated Financial Statements

(unaudited)

Revenue on product sales is generally recorded upon shipment, at which time title transfers to the customer. Revenue on product sales which require customer acceptance is not recorded until acceptance is received. Royalty revenue from license agreements is recorded when earned. Service revenue received in advance from service contracts is initially deferred and recognized ratably over the life of the service contract. Revenue received in advance from rental unit contracts is initially deferred and recognized ratably over the life of the rental contract. Revenue from sale of marketing or distribution rights is initially deferred and recognized ratably as revenue over the life of the contract. Freight charges billed to customers are included in revenue. All freight-related expenses are charged to cost of sales.

We do not recognize revenues to the extent that we offer a right of return or other recourse with respect to the sale of our products, other than returns for product defects or other warranty claims, nor do we recognize revenues if we offer variable sale prices for subsequent events or activities. However, as part of our sales processes we may provide upfront discounts for large orders, one time special pricing to support new product introductions, sales rebates for centralized purchasing entities or price-breaks for regular order volumes. The costs of all such programs are recorded as an adjustment to revenue. In our U.S. sales activities we use a number of manufacturer representatives to sell our products. These representatives are paid a direct commission on sales and act as an integral component of our U.S. sales force. We do not sell our products to these representatives and do not recognize revenue on such shipments. Our products are predominantly therapy-based equipment and require no installation. As such, we have no significant installation obligations.

Cash equivalents include certificates of deposit, commercial paper, and other highly liquid investments and are stated at cost, which approximates market. Investments with original maturities of 90 days or less are considered to be cash equivalents for purposes of the consolidated statements of cash flows.

Inventories are stated at the lower of cost, determined principally by the first-in, first-out method, or net realizable value. We review and provide for any product obsolescence in our manufacturing and distribution operations with assessments of individual products and components (based on estimated future usage and sales) being performed throughout the year.

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Notes to Condensed Consolidated Financial Statements

(unaudited)

Property, plant and equipment, including rental equipment, is recorded at cost. Depreciation expense is computed using the straight–line method over the estimated useful lives of the assets, generally two to ten years except for buildings which are depreciated over an estimated useful life of 40 years. Straight–line and accelerated methods of depreciation are used for tax purposes. Maintenance and repairs are charged to expense as incurred.

We capitalize interest in connection with the construction of facilities. Actual construction costs incurred relating to facilities under active development qualify for interest capitalization. Interest capitalization ceases when the construction of a facility is complete and available for use. During the three months ended September 30, 2005 we capitalized $0.1 million of interest relating to such construction costs.

The registration costs for new patents are capitalized and amortized over the estimated useful life of the patent, generally five years. In the event of a patent being superseded, the unamortized costs are written off immediately.

Other intangible assets are amortized on a straight-line basis over their estimated useful lives, which range from seven to nine years. We evaluate the recoverability of intangible assets periodically and take into account events or circumstances that warrant revised estimates of useful lives or that indicate that impairment exists. All of our intangible assets are subject to amortization. No impairment of intangible assets has been identified during any of the periods presented.

We conducted our annual review for goodwill impairment as at June 30, 2005. In conducting our review of goodwill impairment, we identified reporting units, being components of our operating segment, as each of the entities acquired and giving rise to the goodwill. The fair value for each reporting unit was determined based on discounted cash flows and involved a two step process as follows:

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Notes to Condensed Consolidated Financial Statements

(unaudited)

The results of the review indicated that no impaired goodwill existed at June 30, 2005.

The consolidated financial statements of our non–U.S. subsidiaries, whose functional currencies are other than U.S. dollars, are translated into U.S. dollars for financial reporting purposes. Assets and liabilities of non–U.S. subsidiaries whose functional currencies are other than the U.S. dollar are translated at period end exchange rates, and revenue and expense transactions are translated at average exchange rates for the period. Cumulative translation adjustments are recognized as part of comprehensive income, as described in Note 5, and are included in accumulated other comprehensive income in the consolidated balance sheet until such time as the subsidiary is sold or substantially or completely liquidated. Gains and losses on transactions denominated in other than the functional currency of the entity are reflected in operations.

All research and development costs are expensed in the period incurred.

We calculate earnings per share in accordance with Statement of Financial Accounting Standards No. 128, “Earnings per Share” (“SFAS 128”), as amended by SFAS No. 123(R). SFAS 128 requires the presentation of “basic” earnings per share and “diluted” earnings per share. Basic earnings per share is computed by dividing the net income available to common shareholders by the weighted average number of shares of common stock outstanding. For purposes of calculating diluted earnings per share, net income is adjusted for the after-tax amount of interest associated with convertible debt, and the denominator includes both the weighted average number of shares of common stock outstanding and the number of dilutive common stock equivalents such as stock options and convertible notes.

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Notes to Condensed Consolidated Financial Statements

(unaudited)

The weighted average shares used to calculate basic earnings per share were 70,352,000 and 67,776,000 for the three months ended September 30, 2005 and 2004, respectively. The difference between basic earnings per share and diluted earnings per share is attributable to the impact of outstanding stock options during the periods presented and the assumed conversion of our convertible notes. Stock options had the effect of increasing the number of shares used in the calculation (by application of the treasury stock method) by 2,188,000 and 2,739,000 for the three months ended September 30, 2005 and 2004, respectively. The assumed conversion of our convertible notes had the effect of increasing the number of shares used in the calculation by 3,737,000 and Nil for the three months ended September 30, 2005 and 2004, respectively.

Stock options of 345,000 and 2,140,000 for the three month periods ended September 30, 2005 and 2004 respectively, were not included in the computation of diluted earnings per share as the effect of exercising these options would have been anti-dilutive.

Basic and diluted earnings per share for the periods ended September 30, 2005 and 2004 are calculated as follows (in thousands except per share data):

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Notes to Condensed Consolidated Financial Statements

(unaudited)

The carrying value of financial instruments, such as cash and cash equivalents, marketable securities available-for-sale, accounts receivable and accounts payable approximate their fair value because of their short-term nature. The estimated fair value of the Company’s convertible subordinated notes, which are included within long-term debt, at September 30, 2005 approximates $148.3 million compared with the carrying value of $113.3 million. Foreign currency option contracts are marked to market and therefore reflect their fair value. We do not hold or issue financial instruments for trading purposes.

The fair value of financial instruments is defined as the amount at which the instrument could be exchanged in a current transaction between willing parties.

We enter into various types of foreign exchange contracts in managing our foreign exchange risk, including derivative financial instruments encompassing forward exchange contracts and foreign currency options.

The purpose of our foreign currency hedging activities is to protect us from adverse exchange rate fluctuations with respect to net cash movements resulting from the sales of products to foreign customers and Australian manufacturing activities. We enter into foreign currency option contracts to hedge anticipated sales and manufacturing costs, principally denominated in Australian dollars and Euros. The terms of such foreign currency option contracts generally do not exceed three years.

Our foreign currency derivatives portfolio represents a cash flow hedge program against the net cash flow of our international manufacturing operations. We have determined our hedge program to be a non-effective hedge as defined under Statement of Financial Accounting Standards No. 133 (“SFAS 133”), “Accounting for Derivative Instruments and Hedging Activities”. The foreign currency derivatives portfolio is recorded in the condensed consolidated balance sheet at fair value and included in other assets or other liabilities.

All movements in the fair value of the foreign currency derivatives are recorded within other income, net on our consolidated statements of income.

We are exposed to credit-related losses in the event of non-performance by counter parties to financial instruments. The credit exposure of foreign exchange options at September 30, 2005 and June 30, 2005 was $3.2 million and $3.0 million respectively, which represents the positive fair value of options held by us and are included in other assets on the consolidated balance sheet.

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Notes to Condensed Consolidated Financial Statements

(unaudited)

We held foreign currency option contracts with notional amounts totaling $175.6 million and $145.5 million at September 30, 2005 and June 30, 2005, respectively, to hedge foreign currency items. These contracts mature at various dates prior to December 2007.

We account for income taxes under the asset and liability method. We recognize deferred tax assets and liabilities for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

Management determines the appropriate classification of our investments in debt and equity securities at the time of purchase and re-evaluates such determination at each balance sheet date. Debt securities for which we do not have the intent or ability to hold to maturity are classified as available-for-sale. Securities available-for-sale are carried at fair value, with the unrealized gains and losses, net of tax, reported in accumulated other comprehensive income.

At September 30, 2005 and June 30, 2005, the investments in debt securities were classified on the accompanying consolidated balance sheet as marketable securities-available-for-sale. These investments are diversified among high credit quality securities in accordance with our investment policy and are principally comprised of corporate obligations.

As at September 30, 2005, contractual maturities of marketable securities-available-for-sale were (in thousands):

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Notes to Condensed Consolidated Financial Statements

(unaudited)

Estimated future warranty costs related to certain products are charged to operations in the period in which the related revenue is recognized. The liability for warranty costs are included in accrued expenses in our condensed consolidated balance sheet.

Changes in the liability for product warranty for the three months ended September 30, 2005 are as follows (in thousands):

We periodically evaluate the carrying value of long-lived assets to be held and used, including certain identifiable intangible assets, when events and circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceed the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell.

The aggregate carrying amount of our cost-method investments at September 30, 2005 and June 30, 2005, was $5.2 million and $5.3 million, respectively. These are included in other assets in our condensed consolidated balance sheet. At June 30, 2005, we performed our annual impairment analysis of the carrying value of these investments and we recognized $0.1 million of impairment losses related to our cost method investments which include investments in privately held service companies, research companies and publicly traded companies. After recognition of the impaired loss we have determined that the fair value of the investments exceeded the carrying values and no unrealized losses existed.

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Notes to Condensed Consolidated Financial Statements

(unaudited)

We have granted stock options to personnel, including officers and directors, under both our 1995 Option Plan and our 1997 Equity Participation Plan (collectively the “Plans”). These options have expiration dates of ten years from the date of grant and vest over three or four years. We granted these options with the exercise price equal to the market value as determined at the date of grant. We have also offered to our personnel, including officers and directors, the right to purchase shares of our common stock at a discount under our employee share purchase plan (‘ESPP’).

As of July 1, 2005, we adopted SFAS No. 123 (R) “Share-Based Payment” using the modified prospective method, which requires measurement of compensation expense of all stock-based awards at fair value on date of grant and recognition of compensation expense over the service period for awards expected to vest. Under this method, the provisions of SFAS 123(R) apply to all awards granted or modified after the date of adoption. In addition, the unrecognised expense of awards not yet vested at the date of adoption, determined under the original provisions of SFAS 123, shall be recognized in net income in the periods after adoption. The fair value of stock options is determined using the Black-Scholes valuation model, which is consistent with valuation techniques previously utilized for options in footnote disclosures required under SFAS No. 123, “Accounting for Stock Based Compensation”, as amended by SFAS No. 148 “Accounting for Stock-Based Compensation – Transition and Disclosure”. Such value is recognized as expense over the service period, net of estimated forfeitures, using the straight-line method under SFAS 123(R).

Prior to the adoption of SFAS No. 123 (R) on July 1, 2005, we applied APB Opinion No. 25, “Accounting for Stock Issued to Employees” and related Interpretations, in accounting for our equity plans. No stock-based employee compensation cost was reflected in net income, as all options granted under those plans had an exercise price equal to the market value of the underlying common stock on the date of grant (or within permitted discounted prices as it pertains to the employee stock purchase plan). Results for prior periods have not been restated.

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Notes to Condensed Consolidated Financial Statements

(unaudited)

The following table illustrates the effect on net income and earnings per share if the fair value based method had been applied to all outstanding and unvested awards in each period (in thousands, except per share data).

The application of SFAS 123(R) had the following effect on reported amounts relative to amounts that would have been reported under previous accounting (in thousands, except per share data):

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Notes to Condensed Consolidated Financial Statements

(unaudited)

The fair value of stock options granted during the three months ended September 30, 2005 under our stock option plans and purchase rights granted under our ESPP is estimated on the date of the grant using the Black-Scholes option-pricing model, assuming no dividends and the following assumptions:

Expected volatilities are based on a combination of historical volatilities of our stock and implied volatilities from traded options of our stock. The expected life represents the weighted average period of time that options granted are expected to be outstanding giving consideration to vesting schedules and our historical exercise patterns. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the option.

The estimated fair value of marketable securities available for sale as of September 30, 2005 and June 30, 2005 are $4.5 million and $nil respectively. Expected maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.

Inventories were comprised of the following at September 30, 2005 and June 30, 2005 (in thousands):

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Notes to Condensed Consolidated Financial Statements

(unaudited)

The components of comprehensive income, net of tax, were as follows (in thousands):

Property, plant and equipment is comprised of the following as of September 30, 2005 and June 30, 2005 (in thousands):

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Notes to Condensed Consolidated Financial Statements

(unaudited)

Other intangible assets is comprised of the following as of September 30, 2005 (in thousands):

Intangible assets consist of patents, customer relationships, trade names, developed/core product technology and are amortized over the estimated useful life of the assets, generally between five and nine years. There are no expected residual values related to these intangible assets.

Developed/core product technology was acquired as part of the Saime acquisition on May 19, 2005. It represents proprietary know-how predominantly associated with Saime’s current portfolio of products that was technologically feasible as at the date of acquisition.

Changes in the carrying amount of goodwill for the three months ended September 30, 2005, were as follows (in thousands):

Long-term debt at September 30, 2005 and June 30, 2005 consists of the following (in thousands):

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Notes to Condensed Consolidated Financial Statements

(unaudited)

Convertible Subordinated notes

On June 20, 2001 we issued $150.0 million of 4% convertible subordinated notes that are due to mature on June 20, 2006. On July 3, 2001, we received an additional $30.0 million in over allotments. This increased the total amount of convertible subordinated notes issued to $180.0 million.

During the three months ended September 30, 2005, and 2004, we did not repurchase any of our convertible subordinated notes. At September 30, 2005, we had convertible subordinated notes outstanding of $113.3 million.

The notes are convertible, at the option of the holder, at any time on or before maturity, into shares of common stock of ResMed Inc. The notes are currently convertible at a conversion price of $30.30 per share, which is equal to a conversion rate of 33.0034 shares per $1,000 principal amount of the notes, subject to adjustment.

We may redeem some or all of the notes at any time on or after June 22, 2005, at a redemption price of 100.8% of the principal amount of the notes, plus accrued and unpaid interest, if any, if the closing price of our common stock has exceeded 130% of the conversion price then in effect for at least 20 trading days within a period of 30 consecutive trading days ending on the trading day before the date of mailing of the optional redemption notice.

The notes are general unsecured obligations and are subordinated to all of our existing and future senior indebtedness and are effectively subordinated to all of the indebtedness and liabilities of our subsidiaries. The indenture governing the notes does not limit us or our subsidiaries from incurring senior indebtedness or other indebtedness.

Interest is to be paid on the notes on June 20 and December 20 of each year.

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Notes to Condensed Consolidated Financial Statements

(unaudited)

Syndicated Facility

On May 16, 2005, our wholly-owned Australian subsidiary, ResMed Ltd. entered into a Syndicated Facility Agreement (the “Syndicated Facility Agreement”) with HSBC Bank Australia Limited, as Initial Lender, Facility Agent and Security Trustee, which provides for a 5 year term loan of EUR 50,000,000 (the “Loan”), the proceeds of which are required to be used solely to fund the obligations of our wholly-owned French subsidiary ResMed SA under its agreement to acquire Saime SA.

The Loan bears interest at a rate equal to LIBOR for deposits denominated in Euro plus a margin of 0.90% or 1.00%, depending on the ratio of the total debt to EBITDA, as defined in the Syndicated Facility Agreement, of ResMed Ltd. and its subsidiaries for the most recently completed fiscal year for the applicable interest period, and is payable quarterly. The effective interest rate is currently 3.03%. Payments of principal must be made to reduce the total outstanding principal amount of the Loan to EUR 48,250,000 on June 30, 2006, EUR 44,500,000 on June 30, 2007, EUR 37,750,000 on June 30, 2008, EUR 27,500,000 on June 30, 2009, EUR 15,000,000 on December 31, 2009, and the entire outstanding principal amount must be repaid in full on May 15, 2010. As at September 30, 2005, the facility loan with HSBC had an amount outstanding of US$60.1 million.

The Loan is secured by a pledge of one hundred percent of the shares of Saime SA, and a Guarantee by ResMed SA and Take Air Medical Handels GmbH. The Syndicated Facility Agreement also contains customary covenants, including certain financial covenants and an obligation that ResMed Ltd. maintain certain financial ratios, including a minimum debt service cover ratio, a maximum ratio of total debt to EBITDA and a minimum tangible net worth. The entire principal amount of the Loan and any accrued but unpaid interest may be declared immediately due and payable in the event of the occurrence of an event of default as defined in the Syndicated Facility Agreement, which include, among other items, failure to make payments when due, breaches of representations, warranties or covenants, the occurrence of certain insolvency events, the occurrence of an event or change which could have a material adverse effect on ResMed Ltd. and its subsidiaries, and if ResMed Inc. ceases to control ResMed Ltd, ResMed SA, Saime SA or any of Saime SA’s subsidiaries.

Capital Lease

As part of the acquisition of Saime we assumed a capital lease over land and buildings. This lease contains an option to purchase the property, for nominal consideration, at the end of the lease term in September 2014.

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Notes to Condensed Consolidated Financial Statements

(unaudited)

Details of contractual debt maturities at September 30, 2005 are as follows (in thousands):

Restructuring expenses incurred during the quarters ended September 30, 2005 and 2004 were $1.0 million ($0.6 million net of tax) and $2.0 million ($1.2 million net of tax), respectively. Restructuring expenses (predominantly one-time termination benefits) are associated with the integration of the separate operations of ResMed Germany and MAP into a single operating unit. We have completed the relocation of our ResMed Germany operation (previously located in Moenchengladbach) to Munich and integration of the back office functions including customer service, logistics and administration. We will continue to monitor the progress of this restructure and adjust our business strategies and personnel accordingly to achieve maximum efficiencies and cost savings.

Following is a summary of the restructuring liabilities related to the restructure and integration of the separate operations of ResMed Germany and MAP into a single operating unit, that were recorded during the quarter ended September 30, 2005 (in thousands):

Restructuring expenses incurred are recorded in the consolidated statement of income as restructuring expenses.

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Notes to Condensed Consolidated Financial Statements

(unaudited)

Stock Options. The Company has granted stock options to personnel, including officers and directors in accordance with both the 1995 Option Plan and the 1997 Equity Participation Plan (collectively the “Plans”). These options have expiration dates of ten years from the date of grant and vest over three or four years. The Company granted these options with the exercise price equal to the market value as determined at the date of grant.

The total number of shares of Common Stock authorized for issuance upon exercise of options and other awards, or upon vesting of restricted or deferred stock awards, under the 1997 Plan was initially established at 2,000,000 and increases at the beginning of each fiscal year, commencing on July 1, 1998, by an amount equal to 4% of the outstanding Common Stock on the last day of the preceding fiscal year. The maximum number of shares of Common Stock issuable upon exercise of incentive stock options granted under the 1997 Plan, cannot exceed 16,000,000. Furthermore, the maximum number of shares which may be subject to options, rights or other awards granted under the Plan to any individual in any calendar year cannot exceed 600,000.

At September 30, 2005, there was $16.3 million in unrecognized compensation costs, related to unvested stock-based compensation arrangements. This is expected to be recognized over a weighted average period of 2.1 years. The aggregate intrinsic value of the options outstanding and the options exercisable at September 30, 2005 was $116.2 million and $75.1 million, respectively. The aggregate intrinsic value of the options exercised during the three months ended September 30, 2005, was $12.0 million. The total fair value of options that vested during the three months ended September 30, 2005, was $5.9 million. The following table summarizes option activity during the three months ended September 30, 2005: