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Bed sore mattresses split into two groups: passive surfaces that stay still, and powered air systems that shift pressure on their own.
For the full breakdown, see our best Bed Sore Mattress guide.
Buy the wrong surface and the sore keeps losing ground in the same spot. A powered air overlay helps almost nobody who already shifts their own weight, and a flat foam pad can leave a stage 3 ulcer bearing weight in one place all night.
Every surface sold for pressure ulcers sits on one side of a single line: it holds still, or it moves. Which side a mattress lands on decides the price, the noise, the outlet requirement, and whether a stage 3 or stage 4 sore is even the right target. What follows covers the families, the billing codes behind them, and the limits that shape the choice.
Types Of Bed Sore Mattresses Compared: Air, Alternating Pressure, And More
Pressure-relief surfaces divide into passive types that keep a fixed shape and active types that run on a pump and change pressure over time. Alternating pressure is the active category most people mean when they say “air mattress.”
Passive covers static foam, gel, water, and hand-inflated air overlays. Active covers low-air-loss mattresses that hold one steady low pressure, plus alternating pressure overlays and mattresses whose cells cycle. Air-fluidized beds are a separate class again: warm air flows through silicone beads until the surface behaves like a liquid.
The phrase “air mattress” covers three different products on that list, which is why a cheap listing rarely tells you what shows up.
| Surface | How It Redistributes Pressure | Where It Fits |
|---|---|---|
| Static foam | Body weight spreads across open-cell foam that never shifts | Low risk; users who reposition on their own |
| Gel | Gel layer under foam runs cooler than foam alone | Low risk, hot sleepers, short-term recovery |
| Water | Water chamber shifts with the body and needs a heater | Rarely used now; heavy and high-maintenance |
| Static air overlay | Hand-inflated cells stay firm with no pump | Sp
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