Pressure Relief Mattresses: How to Choose the Right Support Surface at Home
When someone spends long periods in bed, the mattress does more than provide comfort. It becomes part of the person’s skin-protection, positioning and care plan.
Pressure relief mattresses—more precisely called pressure-redistribution mattresses or support surfaces—are designed to spread a person’s weight over a larger area and reduce concentrated pressure. Some also help manage heat, moisture, friction and shear.
They are commonly considered for people with limited mobility, reduced sensation, a history of pressure injuries or an existing wound. However, no mattress can eliminate risk on its own. Ontario Health recommends that people who have developed or are at risk of a pressure injury receive an appropriate support surface based on an individualized assessment, together with measures such as regular repositioning and skin monitoring.
This guide explains the main mattress options used in home care, how they differ and what to discuss with a healthcare professional before choosing one.
Important: This article provides general information, not a diagnosis or individualized wound-care plan. If a person has an existing pressure injury, new skin changes or rapidly changing health needs, involve their nurse, occupational therapist, physician or wound-care clinician.
What Is a Pressure Relief Mattress?
“Pressure relief mattress” is the common search term, but healthcare professionals often use pressure redistribution support surface. That language is more accurate: a surface cannot remove every source of pressure, but it can distribute load more evenly and reduce pressure concentrated over vulnerable areas.
The current international pressure-injury guideline describes full-body support surfaces as specialized mattresses, overlays or integrated bed systems designed to redistribute pressure, reduce friction and shear, and help manage the microclimate around the skin.
A therapeutic mattress may be a complete replacement mattress or an overlay placed on top of another compatible surface. It may work without electricity or use a powered pump. The correct choice depends on the person—not simply on which model has the most features.
Who May Need a Pressure-Redistribution Mattress?
A clinical assessment may be appropriate when someone:
Cannot reposition independently or needs help turning
Spends much of the day or night in bed
Has reduced sensation and may not notice discomfort
Has fragile skin or a history of pressure injuries
Has an existing pressure injury
Experiences frequent moisture from perspiration or incontinence
Has poor circulation, diabetes, neurological conditions or other factors that may affect skin health
Has recently lost weight or has prominent bony areas
Is receiving palliative or complex care at home
Risk cannot be determined from age alone. Ontario Health recommends a comprehensive risk and skin assessment for anyone with at least one risk factor, followed by reassessment as the person’s condition changes.
The Main Types of Pressure Relief Mattresses
High-Specification Foam Mattresses
High-specification foam mattresses use carefully selected foam densities, layers, contours or zones to support the body and distribute pressure. They are non-powered, quiet and generally straightforward for home use.
They may be considered when a person is at risk but does not require a more complex powered system. Features can include:
Multiple foam layers or densities
Contoured or castellated foam sections
Reinforced edges to support transfers
A stretchable, fluid-resistant and vapour-permeable cover
Fire-safety and weight-capacity specifications
“Memory foam” alone is not a clinical specification. Ask what the mattress is designed to do, who it is intended for and whether it is compatible with the bed frame and the person’s care plan.
Alternating-Pressure Air Mattresses
An alternating-pressure mattress uses a powered pump to inflate and deflate groups of air cells in a repeating cycle. This changes where the body is supported over time rather than keeping pressure in one place continuously.
These systems may be recommended for someone with higher clinical risk or an existing pressure injury, depending on their assessment. They require additional setup and monitoring, including:
Correct inflation or patient-weight settings, if the model uses them
Tubing that is connected, unkinked and away from walking paths
A pump that remains powered as directed
An emergency plan for power failures
Routine checks for alarms, leaks and changes in firmness
Never guess at pump settings or place extra padding on top unless the manufacturer and healthcare team confirm that it is appropriate. Extra layers can interfere with how a therapeutic surface works.
Low-Air-Loss Surfaces
Low-air-loss systems move air through specialized cells or a permeable cover to help manage heat and moisture at the skin–surface interface. They may be used for people with complex microclimate or wound-management needs.
These are specialized systems rather than general comfort mattresses. Selection and setup should be guided by a qualified clinician and the manufacturer’s instructions.
Hybrid Mattresses
Hybrid support surfaces combine technologies, such as foam with air cells. Some are non-powered; others can operate in a static mode and connect to a pump when a different level of therapy is required.
The word “hybrid” does not indicate one standard level of performance. Review the exact model, intended use and clinical recommendation.
Mattress Overlays
An overlay sits on top of an existing mattress. Overlays can be foam, gel-filled or air-based, but they are not interchangeable with full replacement mattresses.
Before using one, confirm:
The underlying mattress is compatible and in good condition
The combined height does not create an entrapment or transfer concern
Bed rails and other accessories remain appropriate
The overlay will not shift
The person will not bottom out through the surface
Adding an overlay without checking the entire bed system can create new safety problems.
Foam vs Alternating Air: Which Is Better?
Neither option is automatically best for everyone.
A high-specification foam mattress may be suitable when the person needs pressure redistribution but benefits from a stable, quiet, non-powered surface. A powered alternating-air mattress may be considered when risk is higher, skin needs are more complex or the care team recommends active pressure changes.
The decision should consider:
Current skin condition and pressure-injury history
Ability to move and reposition
Comfort and sleep quality
Pain and sensation
Moisture and temperature at the skin
Transfer technique and edge stability
Body weight and mattress capacity
Bed-frame dimensions and articulation
Caregiver ability to monitor the system
Access to reliable power and a backup plan
Evidence does not support choosing solely by category name or price. Ontario Health’s standard calls for the support surface to be selected from the person’s assessment and individualized care plan.
Seven Questions to Ask Before Choosing a Mattress
1. Has the Person Had a Clinical Risk and Skin Assessment?
The answer helps determine whether a basic pressure-redistribution surface is enough or a more specialized system is required. An existing wound should be assessed rather than matched to a mattress through online research alone.
2. Can the Person Reposition Independently?
Someone who can shift weight and turn independently has different needs from someone who depends on a caregiver for every position change. The mattress should support—not replace—the repositioning plan.
3. Is This a Mattress Replacement or an Overlay?
Confirm exactly what is being supplied and what it must sit on. The total system must fit the bed safely.
4. Will It Fit the Bed Frame?
Check length, width, thickness, articulation and any manufacturer compatibility requirements. Gaps around the mattress or an incorrect surface height can affect transfers, rails and overall safety.
5. What Are the Weight Limits?
Review the minimum and maximum user-weight range, not just the bed’s capacity. A powered surface may not function as intended outside its specified range.
6. How Will the Cover Be Cleaned and Inspected?
The cover is part of the support surface. Follow manufacturer instructions, use compatible cleaning products and check for tears, punctures, staining, fluid ingress or damaged zippers. Do not use a surface with a compromised cover until it has been assessed.
7. What Happens During a Power Failure?
For powered mattresses, know how long the surface maintains support, what alarms mean, whom to call and what the backup care plan is. Keep pump cords and tubing away from transfer and walking routes.
A Mattress Does Not Replace Repositioning
One of the most important points is also one of the easiest to overlook: a therapeutic mattress is only one part of prevention and management.
Ontario Health’s pressure-injury quality standard separately addresses support surfaces and repositioning. It recommends regular repositioning interventions, encouraging people who can move to reposition themselves and helping those who cannot.
The correct schedule is individualized. It may be affected by the person’s skin response, comfort, sleep, mobility, medical condition and support surface. Follow the plan created by the healthcare team rather than adopting a universal turning schedule from the internet.
Other parts of a skin-protection plan may include:
Regular skin checks
Moisture and continence management
Appropriate nutrition and hydration support
Positioning aids used as directed
Safe transfer techniques that reduce friction and shear
Prompt reporting of skin changes
Signs That Need Prompt Clinical Attention
Contact the person’s healthcare provider if you notice a new area of persistent redness or discolouration, warmth, firmness, swelling, pain, blistering or broken skin—especially over the heels, tailbone, hips, ankles or other bony areas.
Do not massage a discoloured area or attempt to diagnose or stage a pressure injury at home. If there are signs of spreading redness, fever, drainage, worsening pain or rapidly deteriorating skin, seek urgent medical assessment.
Setting Up a Pressure Relief Mattress at Home
Follow the instructions for the exact mattress and bed. A safe setup generally includes:
Confirming the mattress matches the bed-frame dimensions
Keeping the bed brakes locked during care and transfers
Making sure the surface can articulate with the bed as intended
Using the recommended sheet type and avoiding tightly tucked layers that restrict the surface
Keeping pump tubing free of kinks and cords out of pathways
Checking pump settings and alarms as directed
Inspecting the cover and surface routinely
Reassessing the setup when the person’s condition, mobility or weight changes
If rails are used, the complete bed system—including the mattress thickness, compression and rail position—should be reviewed for entrapment and transfer risks.
Pressure Relief Mattresses in London, Ontario
Function At Home carries home care hospital bed mattresses and home care hospital beds for individuals and families in London and across Southwestern Ontario.
Our team can help you compare dimensions, construction, covers, powered versus non-powered options and compatibility with your homecare bed. When a person has a pressure injury or significant clinical risk, we can work with the recommendations provided by their healthcare professional.
Need Help Comparing Home Care Mattresses?
Contact Function At Home to discuss mattress options, bed compatibility and practical setup considerations.
Function At Home617 Consortium CourtLondon, Ontario N6E 2S8226-663-1395
For an existing wound, new skin change or individualized pressure-injury prevention plan, contact the person’s nurse, physician, occupational therapist or wound-care clinician.
FAQ
What is the difference between a pressure relief mattress and a regular mattress?
A pressure-redistribution mattress is designed to spread load, reduce concentrated pressure and, depending on the model, help manage friction, shear, heat or moisture. A standard household mattress is not necessarily designed or tested for these clinical purposes.
Is “pressure relief mattress” the correct term?
It is the common consumer term and the recommended SEO phrase. Clinicians often use “pressure redistribution mattress” or “support surface” because no mattress removes all pressure.
Does a pressure relief mattress prevent bedsores?
It can be an important part of a prevention plan, but it cannot guarantee prevention. Risk assessment, repositioning, skin checks, moisture management and other individualized interventions may also be needed.
Is a foam mattress or an alternating-air mattress better?
The better option depends on the person’s risk, skin condition, mobility, comfort, transfers and care environment. A qualified clinician should guide the choice when risk is high or a pressure injury already exists.
Can I put an alternating-pressure overlay on any mattress?
No. The underlying mattress, total height, bed-frame dimensions, rails and transfer setup must all be compatible. Follow the manufacturer’s instructions and the clinical care plan.
Can I use a mattress topper over a pressure-redistribution mattress?
Only if the support-surface manufacturer and healthcare team confirm it is appropriate. Extra toppers, thick pads or tightly tucked bedding may reduce the mattress’s intended performance.
How often should a person be repositioned on a pressure relief mattress?
There is no single schedule that is right for everyone. Repositioning should be individualized according to the person’s assessment, skin response, mobility, comfort and support surface.
When should a pressure relief mattress be replaced?
Replace or service it according to the manufacturer’s instructions and whenever inspection reveals damage, loss of support, a compromised cover, pump failure or another problem that affects safe performance.
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