Pressure injuries are painful, slow to heal and largely preventable — and the support surface a person lies on is one part of preventing them. But a mattress is never the whole answer. It is one component of a documented prevention and care plan that also includes repositioning, skin checks, nutrition, moisture management and clinical review. Choosing a surface without that plan, or assuming a powered mattress removes the need for repositioning, is one of the most dangerous mistakes in pressure care.
This guide explains the main types of pressure-care mattress, the features that matter, and how to match a surface to an assessed level of risk. It is general information only. A clinical pressure-risk assessment by a nurse, occupational therapist or other qualified clinician should guide selection, and no equipment removes the need for ongoing repositioning, skin inspection and clinical review.
Where this sits — the Care Environment Framework: Safety. This article applies the Safe Environment Model — the support surface is one of five factors assessed together (Person → Task → Equipment → Environment → Review), and the Review never stops: the surface supports a care plan, it does not replace it.
Pressure risk depends on the person, not the product
Pressure-injury risk arises from mobility, sensation, skin condition, nutrition, moisture, general health and the time spent in one position. Two people of similar weight can have very different needs. That is why a validated clinical risk assessment — not a product brochure — should drive the choice of surface, and why the assessment must be repeated as the person's condition changes. This is the Person and Review discipline of the Safe Environment Model: match the surface to assessed risk, confirm its ARTG status, weight rating and bed compatibility, and reassess as the person changes rather than assuming the equipment has settled the risk.
A mattress is chosen to match a level of assessed risk. Over-specifying can be uncomfortable, costly and reduce a person's ability to move themselves; under-specifying leaves someone exposed. Both are avoided by starting with the assessment.
The main types of pressure-care surface
- High-specification foam mattress — shaped or layered foam that redistributes pressure. Suits lower-to-moderate assessed risk and needs no power. Quiet, simple and low-maintenance.
- Hybrid mattress — combines foam with air cells, sometimes with a pump. Bridges static and powered options and can suit moderate risk.
- Alternating-pressure (dynamic) mattress — a pump inflates and deflates air cells in cycles, so the points of contact change over time. Used for higher assessed risk. Requires power, staff who understand the settings, and attention to alarms.
- Overlay vs replacement — an overlay sits on top of an existing mattress; a replacement mattress takes the place of the standard one. Overlays add height, which affects bed rails, transfers and fall risk — check these before choosing one.
Foam, hybrid and powered alternating systems address different risk profiles and care contexts. They are not interchangeable, and a higher-tech surface is not automatically "better" for a given person.
Features and settings that matter
Compare these against the assessment and the bed:
- User weight range — the surface must be rated for the person's weight; too light or too heavy for the rating reduces effectiveness. Bariatric surfaces exist for higher weights.
- Bed platform compatibility — confirm the mattress fits the bed, including profiling sections and any hi-low or tilt functions.
- Therapy mode — for powered systems, understand alternating and static (or seating) modes and when each is used, on clinical advice.
- Cover properties — a vapour-permeable, waterproof, low-friction, wipe-clean cover supports skin health and infection control. Check cleaning instructions.
- Alarms — powered systems warn of low pressure, pump faults or disconnection. Staff must recognise and respond to these.
- Power-failure behaviour — know what happens in a power cut: many pumps have a static or transport mode, and some cells hold air for a period. This must be understood before an emergency.
- Noise — pump noise can disturb sleep; consider placement and model.
- Maintenance — pumps, cells and covers need cleaning, inspection and servicing; confirm spare parts and support.
Match the surface to assessed risk
Use this decision list alongside — never instead of — a clinical assessment:
- Lower assessed risk, mobile, good skin → high-specification foam mattress
- Moderate assessed risk → hybrid mattress or higher-spec foam, per assessment
- Higher assessed risk, limited mobility, cannot reposition → alternating-pressure system with trained staff
- Existing suitable mattress, need added protection → overlay (check added height against rails and transfers)
- Higher body weight → bariatric-rated surface sized to assessment
- Existing pressure injury or complex needs → clinician-directed selection as part of a wound and prevention plan
Equipment supports a plan — it never replaces it
Never imply, or assume, that a mattress removes the need for repositioning, skin checks or clinical review. Document who monitors the person, how often skin is inspected, how repositioning is scheduled, and how concerns are escalated. For powered surfaces, make sure staff understand the settings, alarms and power-failure behaviour before the surface is in use — an alarm nobody responds to is worse than none. Confirm ARTG status where applicable, the weight rating, cleaning and maintenance requirements and warranty, and re-check suitability whenever the person's mobility, skin, weight or health changes.
Frequently asked questions
Does a pressure mattress mean the person no longer needs turning? No. A support surface is one part of prevention. Repositioning, skin inspection, nutrition, moisture management and clinical review remain essential. Any suggestion that a mattress replaces turning is unsafe. Follow the person's care plan and clinical advice.
What is the difference between foam, hybrid and alternating mattresses? Foam mattresses redistribute pressure passively and need no power. Hybrids combine foam with air cells. Alternating-pressure mattresses use a pump to inflate and deflate cells in cycles so contact points change; they suit higher assessed risk but need power, trained staff and alarm response.
How do I know which one a person needs? Through a validated clinical pressure-risk assessment by a nurse or other qualified clinician, repeated as the person's condition changes. The assessment, not the product features, determines the appropriate surface.
What happens to a powered mattress in a power cut? It depends on the model. Many have a static or transport mode and some cells hold air for a period, but this varies. Understand the specific mattress's power-failure behaviour before it is relied upon, and have a plan for outages.
Can a pressure mattress be funded? Pressure-care surfaces may be funded through the NDIS or the aged care Assistive Technology and Home Modifications pathway, generally with a clinical assessment and quote. Confirm current eligibility and process before buying.
Choose a pressure surface with support
CareAid Supplies stocks foam, hybrid and alternating-pressure mattresses and overlays suited to Australian homes and care settings, with help to match the surface to a clinical assessment and the bed, and to arrange funded procurement where you are eligible. The repositioning, skin-check and escalation routines the surface depends on live in your operations — CareIQ supports residential aged care with the care planning and incident workflows that keep a prevention plan running, not just documented.
Browse the CareAid Supplies pressure-care range →
Continue your journey
Choose the right equipment
- Pressure Care Guide (CareAid Supplies)
- Hospital Bed Buying Guide (CareAid Supplies)
- How to Review Assistive Equipment Safely (CareAid Supplies)
Running your facility
- Clinical Governance Guide for Care Providers (CareIQ)
- Residential aged care: keep a prevention plan running (CareIQ)
Shape the care environment
- Interior Design & Resident Wellbeing (Little East Hampton)
General information only. It does not replace assessment by a nurse, occupational therapist or other qualified clinician, and no equipment removes the need for repositioning, skin checks and clinical review. Verify current ARTG status, weight rating, bed compatibility, cleaning, alarms, power-failure behaviour and manufacturer instructions, and recheck current Australian regulations and standards before acting or publishing.