TRICARE Sleep Study & CPAP Coverage Guide (2026)
## Quick answer TRICARE covers sleep studies and CPAP machines when a provider determines they are medically necessary to treat conditions like obstructive sleep apnea. You generally need a referral for the initial sleep study, and if diagnosed, TRICARE covers the machine, mask, and ongoing replacement supplies (filters, tubing, and cushions).
*Note: TRICARE.com is an independent reference site and is not affiliated with the Department of Defense. Visit TRICARE.mil for official policy.*
Details
### 1. The Sleep Study (Diagnostic Phase) TRICARE covers both attended sleep studies (performed in a sleep lab or hospital) and unattended home sleep tests (HST). * **Referrals:** Active Duty Service Members (ADSMs) always need a referral for a sleep study. TRICARE Prime enrollees usually require a referral from their Primary Care Manager (PCM). TRICARE Select enrollees do not require a referral but must see a TRICARE-authorized provider to avoid high out-of-network costs. * **Coverage Criteria:** The study must be prescribed to diagnose a specific condition, such as obstructive sleep apnea (OSA), narcolepsy, or periodic limb movement disorder. TRICARE does not cover sleep studies for "chronic insomnia" unless other underlying conditions are suspected.
### 2. CPAP and BiPAP Machines If a sleep study confirms a diagnosis of OSA, TRICARE covers the rental or purchase of Continuous Positive Airway Pressure (CPAP) or Bilevel Positive Airway Pressure (BiPAP) machines. * **The 90-Day Trial:** TRICARE typically covers an initial 90-day period of CPAP therapy to monitor "compliance." You must use the machine for at least 4 hours per night for 70% of the nights in a consecutive 30-day period. If compliance is met, TRICARE will continue to fund the machine (often transitioning from a rental to a purchase). * **Replacement Machines:** TRICARE generally covers a new CPAP machine every five years if the current one is no longer functioning or if a doctor provides a new prescription due to a change in your medical condition.
### 3. Supplies and Costs (2026 Rates) CPAP supplies are covered as Durable Medical Equipment (DME). * **Supplies:** TRICARE covers masks (every 3–6 months), tubing (every 3 months), filters (2 per month), and water chambers (every 6 months). * **Costs:** * **Active Duty:** $0 out-of-pocket for studies and equipment. * **TRICARE Prime (Retirees/Families):** $0 for the sleep study (if referred); 20% cost-share for the machine and supplies. * **TRICARE Select (2026):** For Group A, beneficiaries may pay a 20% cost-share of the TRICARE-allowed amount after meeting their deductible. * **Note:** Rates vary by plan year and beneficiary group; check the 2026 TRICARE Cost Guide for specific dollar caps.
### 4. Travel and Portable CPAPs TRICARE does **not** typically cover "Travel CPAP" machines (miniature versions) because they are considered a matter of convenience rather than medical necessity. However, Active Duty members on deployment orders may occasionally receive specialized equipment through their unit's medical transition office.
## Who this affects * **Active Duty Service Members:** Full coverage; requires PCM referral and command notification in some cases (due to deployability). * **Retirees and Family Members:** Covered under Prime and Select; subject to DME cost-shares. * **National Guard and Reserve:** Covered if enrolled in TRICARE Reserve Select (TRS). * **TRICARE For Life (TFL):** Medicare is primary; TRICARE pays second. Medicare’s strict CPAP compliance rules must be met first.
## Sources * **TRICARE.mil (Covered Services):** https://www.tricare.mil/CoveredServices/IsItCovered/SleepStudies * **TRICARE.mil (Durable Medical Equipment):** https://www.tricare.mil/CoveredServices/IsItCovered/DME * **TriWest Healthcare Alliance (West Region):** https://www.triwest.com * **Humana Military (East Region):** https://www.humanamilitary.com