Pressure-Relief Mattresses, Cushions and Heel Protection
By Sweetwater Groves · Last updated 2026-08-12
Key Takeaways
- • A support surface buys time between position changes — it never replaces them.
- • Foam suits someone who still shifts a little; alternating air suits someone who cannot move themselves at all or already has a pressure injury.
- • Chair cushions and floated heels are the two most overlooked pieces, and often the two that matter most.
Shopping for this equipment is genuinely confusing. The listings all promise the same things, the prices swing wildly, and it's hard to tell what's meaningful from what's marketing. Here's the honest version, in plain language, so you can spend your money and your attention where they actually help.
First, the most important sentence
A support surface buys you time between position changes. It does not replace them. Any product that suggests otherwise is overselling. Used alongside a steady repositioning rhythm, though, a good surface does quiet protective work all day and all night.
Mattresses and overlays, compared
Standard foam mattress
What most beds already have. Fine for someone who moves easily and independently; not adequate once mobility is limited. If your loved one is spending most of the day in bed, this is the point to upgrade.
High-specification foam or gel-foam
Denser, contoured foam that spreads weight over a wider area. Quiet, no power needed, no maintenance, and comfortable for most people. This suits someone at low to moderate risk who still shifts a little on their own. It's the sensible default for most families and generally good value.
Alternating-pressure air mattress or overlay
Cells inflate and deflate in turn on a cycle, so no area carries weight continuously. This is the step up for someone who cannot reposition themselves at all, or who already has a pressure injury. Points to know: the pump must stay on, the inflation setting has to match your loved one's weight to work at all, and some people find the gentle movement or the pump hum disturbing at night. An overlay sits on top of an existing mattress and costs less; a replacement mattress is more effective and more expensive.
Low-air-loss and specialty surfaces
These circulate air to manage moisture as well as pressure, and are typically used for existing wounds or heavy moisture issues, usually arranged through home health or a wound-care professional rather than bought outright.
What to skip
Sheepskin pads and egg-crate foam are comfortable but don't meaningfully redistribute pressure for someone at real risk. Donut and ring cushions actively concentrate pressure around the area they're meant to protect. Stacked folded towels create ridges that make things worse rather than better.
Chair cushions — the piece families forget
Sitting concentrates more pressure on the tailbone than lying down does, yet families often invest carefully in the bed and leave the recliner as it is. If your loved one spends hours in a chair each day, a proper pressure-redistributing cushion belongs there too.
- Foam or gel-foam: good for a few hours a day with some independent shifting.
- Air or hybrid: better for all-day sitting with little movement.
- Fit matters: a cushion much wider or narrower than the seat changes how weight lands.
- Still shift: aim for a small weight change every fifteen minutes to an hour, cushion or not.
Heels: the cheapest win in this whole guide
Heels are the second most common site for pressure injuries and the easiest of all to protect, because you can remove the pressure completely rather than merely reduce it.
- A pillow under the calves so the heels hang free. Free, immediate, and effective — do it every time your loved one lies down.
- Heel protector boots or sleeves when a pillow won't stay put, especially for someone who moves their legs at night. Look for a design that offloads weight to the calf rather than only padding the heel.
- Check for pressure elsewhere. Any device with straps needs checking daily — protectors can create their own pressure points at the ankle or shin.
Getting help paying for it
Medicare Part B may cover pressure-reducing support surfaces as durable medical equipment when a physician documents medical necessity, with the category depending on the documented risk level or wound stage. Start with your loved one's physician or home health agency — they handle this routinely — and confirm details with the plan. Our guide to paying for care covers the wider financial picture.
Equipment helps. People help more.
The right surface is worth having, and it will never watch your loved one's skin, notice a change in appetite, or turn them at three in the morning. Those are things people do.
In a small nurse-led home, the equipment and the attention arrive together: appropriate surfaces already in place, a registered nurse tracking skin week over week, and caregivers who know your loved one repositioning them unhurried. If you'd like to talk about what that would look like for your family, we're glad to have that conversation.
What would you like to do next?
Related Guides
- Preventing Bedsores: A Family's Gentle GuideWhere pressure injuries form, how often to change position, and the daily rhythm that prevents most of them.
- Repositioning and Turning: A Gentle Daily RhythmHow often to turn, how to move someone without hurting fragile skin, and how to make the rhythm stick.
- Skin and Pressure Care at Home: A Gentle GuideThe hub for protecting fragile skin at home — movement, pressure relief, dryness, and nourishment.