Safety-first answer: A pressure care mattress or overlay should be selected from an individual assessment of skin risk, mobility, posture, comfort, continence, care routines and the bed itself. It can redistribute pressure, but it does not remove all pressure or replace repositioning, skin checks and clinical care.
The first decision is not simply “foam or air”. It is whether the person needs an overlay on an existing mattress, a complete mattress replacement, or a more complex powered system. The right choice also needs to work with transfers, bed rails, profiling functions, carers and the home environment.
Overlay or mattress replacement?
| Option | How it is used | Checks before choosing |
|---|---|---|
| Mattress overlay | Sits on top of a suitable existing mattress | Total bed height, stability, bottoming out, fitted-sheet tension and compatibility with the base mattress |
| Mattress replacement | Replaces the existing mattress | Bed platform size, profiling compatibility, side-rail clearances, transfer height and maximum user weight |
| Powered air system | Uses a control unit to change or maintain cell pressure | Power access, alarms, pump position, noise, emergency procedures and ongoing setup |
An overlay is not automatically the simpler or safer choice. Adding height can affect transfers and side-rail geometry, while an unsuitable base mattress can undermine the overlay. A replacement surface may integrate better with a profiling bed but still needs the correct size and setup.
Overlays, reactive replacements and active air systems solve different setup and care problems.
Reactive and active support surfaces
A reactive surface responds to the person’s weight and shape. High-specification foam, gel, air and combination designs can increase immersion and contact area without regularly changing pressure through a powered cycle.
An active surface uses powered air cells that inflate and deflate in a repeating pattern. Some systems also offer constant low-pressure or firm-care modes. The presence of a pump does not make one system suitable for every person; tolerance, movement, sleep, transfers and clinical goals still matter.
Start with the person and care plan
Assessment should consider current and previous pressure injuries, sensation, ability to reposition, body shape, pain, spasm, temperature, moisture, nutrition, continence and time spent in bed. The person’s preferred sleep positions and ability to get in and out of bed also affect the decision.
Queensland Spinal Cord Injuries Service notes that a suitable mattress still requires clinical observation and skin monitoring. If skin changes, comfort or function worsen during a trial, the surface and care plan need review rather than simply more time.
Check the bed and room
- Measure the usable bed platform, not only the bed’s retail size name.
- Confirm the surface can profile safely with an adjustable or hospital bed.
- Check total height for transfers, hoist access and the person’s ability to place their feet.
- Review side rails, gaps and entrapment risks with the relevant professional.
- Allow space for the pump, hoses, cables and carers.
- Confirm the user weight falls within the manufacturer’s stated range.
Covers and bedding affect performance
Pressure care covers are often stretchable, vapour permeable and fluid resistant. Tightly tucked sheets, multiple protectors, non-stretch layers or heavy items can reduce immersion and alter how the surface works. Use only bedding and accessories allowed by the manufacturer and care plan.
Inspect covers for tears, swelling, staining, damaged zips and moisture ingress. A damaged cover can create infection-control and equipment problems even when the internal foam or cells look intact.
Product examples show the range
The ICare ActiveX Mattress Overlay is a non-powered topper intended to add comfort and pressure redistribution over a compatible mattress. It is available in several bed sizes, so the existing mattress and total height still need checking.
The Forté Aurea Modulated Mattress is a foam mattress replacement with a modulated support surface. It illustrates the lower-maintenance reactive category, but size, firmness, cover and clinical suitability remain individual decisions.
The CuroCell A4 CX10 is a powered dynamic overlay placed over a suitable existing mattress. Its pump, air cells and therapy modes add setup, alarm and maintenance requirements that should be understood before use.
These examples are not interchangeable recommendations. Product claims, user limits and setup instructions should be checked against the current manufacturer documentation.
Bed fit, transfer height, cover condition, pump placement and clear access all belong in the decision.
Plan for setup and maintenance
- Record the make, model, size and prescribed settings.
- Keep instructions and emergency information near the equipment.
- Check alarms, hoses, connections and power supply as directed.
- Know what to do during transport or a power interruption.
- Clean the cover and pump only with approved methods.
- Arrange regular inspection and servicing where required.
- Reassess after changes in weight, mobility, skin, pain or care needs.
Questions to take to an assessment or trial
- Is an overlay appropriate on the current mattress, or is a replacement needed?
- What clinical outcome is the surface expected to support?
- How will skin, comfort, transfers and sleep be reviewed?
- What repositioning and care plan remains necessary?
- Who will manage setup, alarms, cleaning and servicing?
- What happens if the surface fails or power is unavailable?
Frequently asked questions
Is an alternating air mattress always better than foam?
No. Active and reactive surfaces work differently. The person’s needs, tolerance, care plan and environment determine suitability.
Can an overlay go on any mattress?
No. The base mattress must be suitable, stable and within the overlay manufacturer’s requirements. Total height and bed-rail geometry also need review.
Does a pressure mattress replace turning?
No. Follow the individual repositioning and skin-monitoring plan provided by the clinical team.
When should the mattress be reviewed?
Review it after skin changes, discomfort, reduced mobility, weight change, a new bed or care routine, equipment faults, or any decline in transfer safety.
Next step: Compare AATC’s pressure care mattresses and bed overlays, record the bed dimensions and current care needs, and confirm the choice with the relevant clinician.
Sources and further reading
- Queensland Health: Pressure Relieving Mattress Trial, Selection and Evaluation
- Queensland Spinal Cord Injuries Service: skin considerations in lying
- Australian Commission on Safety and Quality in Health Care: pressure injury guidance
This article is general education, not a pressure-injury assessment, prescription or treatment plan. Clinical review is required before publication and before selecting equipment for a person at risk.