Wedge pillow for sleep apnea: who it may help and how to set it up
We research products from makers' specs and health sources; we do not run hands-on tests. Links to Amazon may earn us a commission at no cost to you. How this works.
- Long, gradual memory foam wedge with firm base. Best for: Back sleepers with positional OSA who want full torso support. See options on Amazon
- Wide wedge with a gentle incline. Best for: People who drift onto their side or share a bed. See options on Amazon
- Adjustable stacking wedge set. Best for: Anyone unsure what angle they can sleep at. See options on Amazon
- Under-mattress wedge. Best for: Sleepers who keep sliding off a pillow wedge. See options on Amazon
Why sleeping position matters in obstructive sleep apnea
In obstructive sleep apnea (OSA), the upper airway narrows or closes during sleep. Position changes how much that happens. Mayo Clinic notes that snoring may be loudest and apneas more common when you sleep on your back, and that most forms of OSA are milder when you sleep on your side.
The Sleep Foundation reports that about 20% to 30% of people with sleep apnea have symptoms only while lying on their backs. This is called positional OSA, and it is defined by at least a doubling of the apnea-hypopnea index on the back compared with other positions. These are the people a wedge is most likely to help.
What a wedge actually does
Sleeping in an elevated position can limit how much gravity pulls the tongue back toward the airway, according to the Sleep Foundation. It ranks head elevation as the second-best option after side sleeping and suggests an incline of 30 to 60 degrees.
A wedge is one of several ways to get there. The Sleep Foundation also lists blocks under the bed legs, a wedge placed under the mattress, an adjustable bed, or a recliner. A pillow wedge is the easiest to try because it needs no tools and moves with you.
| Option | Good fit for | Trade-off |
|---|---|---|
| Foam wedge pillow on top of the mattress | Trying elevation without changing the bed | You can slide down or roll off it during the night |
| Wedge under the mattress | A gentle, even incline | Raises your partner's side too on a shared mattress |
| Adjustable base | Couples who want separate settings | A bigger change to your bedroom setup |
How to choose a wedge for sleep apnea
- Incline: aim for an angle you can actually sleep at. A steep wedge can feel like sitting in a chair. The Sleep Foundation notes that the most common complaints in studies of upright sleep were back and chest discomfort and trouble sleeping.
- Length: a long, gradual slope supports your back as well as your head. A short, steep wedge bends you at the waist instead.
- Firmness: you want foam firm enough that it does not flatten under your shoulders by morning.
- Surface: a softer memory foam top layer over a firmer base is a common build that adds comfort without losing the angle.
- Width: wider wedges give you room to turn partly onto your side, which also helps with OSA.
- Cover: look for a removable, washable cover. See our wedge pillow cover guide for sizing.
Setting it up so you stay on it
- Push the tall end flush against the headboard or wall so it cannot slide.
- Lie down so your lower back meets the bottom edge of the slope, not your shoulders.
- Add a thin pillow on top only if your neck needs it. Stacking a thick pillow on a wedge can push your chin toward your chest.
- Place a pillow under your knees if you slide down. Our under knee pillow guide covers this.
- Give it several nights. A new angle often takes some getting used to.
If you use CPAP, read our CPAP wedge pillow guide for mask and hose tips.
Limits you should know before relying on a wedge
The Sleep Foundation states that sleeping sitting up does not benefit everyone with OSA, that in most cases positional therapy should not be the only treatment, and that CPAP reduces breathing problems more than positional therapy alone. It also notes that prolonged sitting may raise the risk of leg blood clots for some people, so check with a doctor first if that applies to you.
Mayo Clinic adds that weight loss, about 150 minutes of exercise a week, and avoiding alcohol can also matter, because alcohol makes OSA worse. A wedge works best as one part of a plan your sleep clinician knows about.
What to look for when you buy
Long, gradual memory foam wedge with firm base
Best for: Back sleepers with positional OSA who want full torso support
A long slope lifts the whole upper body, which matches the Sleep Foundation's advice to raise the head of the bed rather than just the head. A firm base holds the angle all night.
Watch out: Takes up much of a pillow's length on the bed; shorter sleepers may slide off the bottom.
See options on AmazonWide wedge with a gentle incline
Best for: People who drift onto their side or share a bed
Extra width lets you turn partly to the side, the position Mayo Clinic says makes most OSA milder, without falling off the slope.
Watch out: A gentler angle gives less lift, so it may do less for strictly positional apnea.
See options on AmazonAdjustable stacking wedge set
Best for: Anyone unsure what angle they can sleep at
Removable layers let you start low and work up toward the 30 to 60 degree range the Sleep Foundation describes, which helps with the discomfort studies report.
Watch out: Layers can shift apart if the cover is loose.
See options on AmazonUnder-mattress wedge
Best for: Sleepers who keep sliding off a pillow wedge
The Sleep Foundation lists a wedge beneath the mattress as one way to raise the head of the bed. The incline covers the full mattress width.
Watch out: On a shared bed it tilts both sides, and it may not suit very thick or foam mattresses.
See options on AmazonQuestions people ask
- Does a wedge pillow help sleep apnea?
- It may help, mainly for people whose apnea is worse on their back. The Sleep Foundation says upright sleep does not help everyone and that CPAP reduces breathing problems more than positional therapy alone.
- What angle wedge is best for sleep apnea?
- The Sleep Foundation suggests raising the head of the bed by 30 to 60 degrees. Start at the low end if a steep angle keeps you awake.
- Can a wedge pillow replace my CPAP?
- Do not stop CPAP on your own. In most cases positional therapy should not be the only treatment for OSA, so talk with your sleep doctor before changing anything.
- Is side sleeping better than a wedge for sleep apnea?
- The Sleep Foundation ranks side sleeping first and head elevation second. Some people combine them by using a wide wedge and turning slightly to the side.
- Can I just stack regular pillows?
- Pillows under the head can help some people, the Sleep Foundation notes, but they tend to bend the neck and shift overnight. A wedge keeps a more even slope.
Sources
- Best Sleeping Position for Sleep Apnea (www.sleepfoundation.org/sleeping-positions/best-sleeping-position-for-sleep-apnea), Sleep Foundation
- Does Sleeping Sitting Up Help Sleep Apnea? (www.sleepfoundation.org/sleep-apnea/does-sleeping-sitting-upright-help-sleep-apnea), Sleep Foundation
- Obstructive sleep apnea: Diagnosis and treatment (mayoclinic.org), Mayo Clinic