Who Should Be Considered for a Powered Support Surface?

Too often, the powered-surface conversation starts late: after a wound has stalled, after the second dressing change this week, after a resident has already been through the pain and the paperwork of a pressure injury. The published guidance supports starting earlier — not with a catalogue, but with a walk down the corridor.

The 2026 International Guideline treats surface selection as good practice matched to the person: overall risk, the response of the skin and tissues, independence, mobility and activity, posture and sleeping position, the need for microclimate management and shear reduction, and preferences and care goals (SS4). [1] It also names when an air surface usually enters the plan:

Ontario’s quality standard says the same thing in purchaser language: people who have developed, or are at risk of, a pressure injury are provided with appropriate support surfaces based on their assessment. [2]

The largest pragmatic trial of alternating pressure versus high-specification foam asked who gained the most: its exploratory analysis suggested potential benefit in people who were completely immobile, had altered skin or a Category 1 injury at baseline, had a nutritional problem, or lacked capacity — a list that reads like a long-term-care census. [3] Canada’s health-technology agency concluded that reactive air and alternating-pressure air surfaces may be more effective than foam at preventing pressure injuries, with effectiveness influenced by setting and follow-up time. [4]

Those findings do not pick a mattress. They tell a Director of Care whose names belong on a shortlist for assessment. In practice, six bedside observations should prompt a surface assessment:

A risk score starts the conversation. The assessment finishes it. A diagnosis or a Braden number alone does not choose the mattress. [1][2]

These are not automatic qualifications. They are the caseloads that most often produce the six observations above.

Presentations prompt an assessment. They never replace one.

A “powered surface” is not one therapy. Two important functions are in play, and many surfaces provide one or both. Naming the job is what turns a general interest into a prescription a clinician can write.

When the job is active pressure redistribution — consider alternating pressure. Air cells cyclically change which areas of the body carry load — active pressure redistribution, rather than relying only on the person changing position. Reach for this function when the person cannot reposition, cannot be kept off an at-risk area, or is declining on a reactive surface. [1][3][5] This is the function behind the prevention evidence versus foam.

When the job is moisture and heat — consider low air loss. The Support Surface Standards Initiative defines low air loss as a construction that:

The Cochrane overview notes that low-air-loss features are designed to improve the skin microclimate, particularly for people with incontinence. [5] The 2026 guideline suggests low air loss for people at risk when moisture and heat contribute (SS11) and for existing Stage 2–4 injuries (SS15). [1]

When both jobs are present — modern surfaces combine both. An immobile resident with uncontained moisture needs offloading and microclimate management. Those functions are complementary. Many current powered surfaces deliver both on one platform. Match the functions to the person. Then reassess.

No support surface replaces repositioning. The interval may be adjusted to the surface and the person’s response; the surface does not cancel the plan. [11]

The purchaser’s summary is short. The Cochrane programme’s strongest single statement about alternating pressure is economic, at moderate certainty: alternating-pressure air surfaces are probably more cost-effective than foam. [5] In the largest trial’s economic analysis — a UK study — the alternating-pressure arm had lower total costs and more quality-adjusted life-years than foam. [3]

For the funding file: a resident-specific letter of justification that names the clinical need (immobility, moisture burden, existing injury), the function that answers it, and the assessment behind it is the document purchasers and funders ask for; your dealer and Evergreen can support that documentation. The NPIAP’s selection guidance closes the loop between the two audiences of this article: choose on manufacturer performance data, and evaluate equipment with feedback from bedside clinicians and the people using it — so the purchasing decision and the clinical rationale are the same document. [7]

Before any of that becomes a purchase, a demonstration answers the practical questions:

The fastest way to answer all six is to see the surface on a bed in the facility, with one named resident in mind.

For community OTs, the environment is part of the assessment. The guideline calls attention to available space and access, reliable electricity and pump placement, bed and surface fit for the person’s size and weight, and clear information for carers on cleaning, inspection and maintenance — the home-visit checklist that decides whether a powered surface will actually work where the person lives. [1]