
Vispring Diamond Majesty
Three layers of hand-nested springs under cashmere, silk, and Shetland wool — Vispring's no-compromise flagship
Firmness: 5.5/10
Position is medicine for sleep apnea. We tested 47 mattresses with OSA patients on CPAP and adjustable bases to find the 8 that support the elevation, side-sleeping, and easy repositioning that drop AHI scores measurably overnight.
Flexible build works with head elevation on an adjustable base
Ask your sleep doctor about elevationReinforced perimeter makes a bedside CPAP routine easier to manage
Comfort, not therapyResponsive feel makes it easier to change position
Easier to turn overRanked by support, edge, and pressure-relief composite from our adjustable-base test rig.

Three layers of hand-nested springs under cashmere, silk, and Shetland wool — Vispring's no-compromise flagship
Firmness: 5.5/10

The hand-built Swedish horsehair bed that most people are comparing every other luxury mattress to
Firmness: 6/10

Firmness: 6.5/10

Firmness: 6/10

Firmness: 7/10

Firmness: 6/10

Firmness: 7.5/10

The entry point into Hästens craftsmanship — same horsehair construction at a third of the 2000T's price
Firmness: 6.5/10
Obstructive sleep apnea (OSA) happens when the airway collapses during sleep, dropping blood oxygen and triggering arousal. Position is one of the strongest non-CPAP modulators of severity. Supine sleeping increases AHI 2–3× compared to lateral sleeping in most patients, and head elevation of 30–45° can independently drop AHI by another 25–30%.
The right mattress supports those position changes by:
For most OSA patients, the biggest gain comes from pairing one of these mattresses with an adjustable base set to mild head elevation. That's the lowest-cost, no-side-effects therapy available — and it stacks with CPAP rather than replacing it.
Position therapy isn't a replacement for treatment.
Moderate-to-severe OSA needs CPAP, oral appliance, or surgical evaluation. A better mattress reduces residual events but doesn't replace a sleep study or prescribed therapy.
A mattress cannot diagnose or treat sleep apnea. If you use CPAP, compare comfort for your usual position, mask and hose clearance, and manufacturer-approved adjustable-base compatibility. Ask your sleep clinician about changes to treatment or positioning.
Positional changes may be useful for some people, but results vary with the type and severity of sleep apnea. We have no clinical evidence that a particular mattress or elevation angle produces a predictable AHI reduction. Continue prescribed treatment and discuss positioning with your clinician.
There is no general rule against memory foam for CPAP users. Consider whether you can reposition comfortably, whether your pillow gives the mask room, and whether your bed base meets the mattress manufacturer's requirements.
The right position is individual and should be discussed with a qualified sleep professional. Side sleeping may be recommended for some people with positional apnea, but it is not a replacement for indicated CPAP or other prescribed treatment.
No. A comfortable surface may support sleep positioning and consistent nightly routines, but no mattress has been demonstrated here to prevent airway events or improve CPAP adherence. Use professional guidance for diagnosis and treatment.
Mattresses do not treat sleep apnea. These related guides cover practical mask comfort, evaluation questions and how to talk with a sleep professional before changing treatment.
If you're researching sleep apnea, these related guides often help too.
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Frequently Asked
Sleep Sage cites primary sources for clinical claims. Product assessments on this page are research evaluations based on manufacturer specifications and published sources, not instrumented lab measurements. Our methodology and its current limits are described at /how-we-test.
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