Sleep study with CPAP cost in Seattle, WA
In Seattle-Tacoma-Bellevue, WA, 11 hospitals list a cash price for in-lab sleep study with CPAP or bilevel titration, age 6 and older: from $500.00 to $4,357.81, with a median of $3,554.68. The lowest listed price is at Seattle Children's Hospital — $3,054.68 less than the median here. Across Washington, the median is $3,250.00 at 21 hospitals.
Cash prices at 11 facilities across 9 cities for code 95811, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Seattle-Tacoma-Bellevue, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Seattle Children's Hospital lowest Seattle, WA · (206) 987-2000 Polysom 6/>Yrs Sleep W/Cpap 4/> Addl Param Attnd | $500.00 | $500.00 | $69.72–$400.00 | — | — source file |
| Virginia Mason Medical Center Seattle, WA · (206) 223-6600 POLYSOM,6+ YO,4 OR MORE ADDL PARAMETERS W/CONTINUOUS POS AI | $1,911.48 | $3,748.00 | $2,248.80–$2,998.40 | 49% | — source file |
| Swedish Issaquah Issaquah, WA · (425) 313-4000 HC POLYSOMNOGRAPHY W/CPAP | $1,946.40 | $4,055.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC POLYSOMNOGRAPHY W/CPAP | $1,946.40 | $4,055.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC POLYSOMNOGRAPHY W/CPAP | $1,946.40 | $4,055.00 | — | 52% | Apr 1, 2026 source file |
| Providence Regional Medical Center Everett Everett, WA · (425) 261-2000 HC POLYSOMNOGRAPHY W/CPAP REDUCED | $2,163.20 | $4,160.00 | — | 48% | Apr 1, 2026 source file |
| Providence Regional Medical Center Everett Everett, WA · (425) 261-2000 HC POLYSOMNOGRAPHY W/CPAP | $2,163.20 | $4,160.00 | — | 48% | Apr 1, 2026 source file |
| Seattle Children's Hospital Seattle, WA · (206) 987-2000 Sleep Study W/ Intervent Limited | $2,682.70 | $2,682.70 | $572.97–$2,575.39 | — | — source file |
| Saint Clare Hospital Lakewood, WA · (253) 588-1711 HC SLEEP STUDY STAGING W/CPAP | $3,554.68 | $12,332.32 | $1,153.15–$9,249.24 | 71% | Feb 28, 2026 source file |
| St Anthony Hospital Gig Harbor, WA · (253) 530-2050 HC SLEEP STUDY STAGING W/CPAP | $3,750.86 | $12,332.32 | $1,153.15–$9,249.24 | 70% | Feb 28, 2026 source file |
| Highline Medical Center Burien, WA · (206) 431-5237 HC SLEEP STUDY STAGING W/CPAP | $3,765.75 | $12,332.32 | $1,132.40–$11,099.09 | 69% | Feb 28, 2026 source file |
| St Francis Community Hospital Federal Way, WA · (253) 944-8100 HC SLEEP STUDY STAGING W/CPAP | $3,870.17 | $12,332.32 | $1,132.40–$9,249.24 | 69% | Feb 28, 2026 source file |
| St Joseph Medical Center Tacoma, WA · (253) 627-4101 HC SLEEP STUDY STAGING W/CPAP | $4,084.44 | $12,332.32 | $1,153.15–$9,249.24 | 67% | Feb 28, 2026 source file |
| Enumclaw Regional Hospital Association Enumclaw, WA HC SLEEP STUDY STAGING W/CPAP | $4,357.81 | $12,332.32 | $2,096.50–$11,099.09 | 65% | Feb 28, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC POLYSOMNOGRAPHY W/CPAP | $4,476.48 | $9,326.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC POLYSOMNOGRAPHY W/CPAP | $4,476.48 | $9,326.00 | — | 52% | Apr 1, 2026 source file |
| Swedish Issaquah Issaquah, WA · (425) 313-4000 HC POLYSOMNOGRAPHY W/CPAP | $4,476.48 | $9,326.00 | — | 52% | Apr 1, 2026 source file |
| Seattle Children's Hospital Seattle, WA · (206) 987-2000 Sleep Study W/Intervention | $9,259.20 | $9,259.20 | $2,333.32–$8,888.83 | — | — source file |
Outpatient: lowest $500.00, median $3,554.68, highest $4,357.81 — a 8.7× difference within the same market.
As an inpatient, the same code is billed by 11 facilities here, median $3,765.75. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 7 of 8 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
This is an overnight sleep study at a sleep center where a technologist records brain waves, breathing, oxygen and heart rhythm and starts CPAP or bilevel therapy to find the right pressure. It is used both for a full night of CPAP adjustment and for a split-night study that starts as a diagnostic study.
What the price covers
The hospital price usually covers the overnight study and the technologist. The sleep physician's interpretation is often billed separately, and the CPAP machine itself is bought separately.