For patients who spend a significant amount of time in bed, the surface they rest on matters more than most families realize. Pressure injuries, sometimes called bedsores or pressure ulcers, are one of the most common and preventable complications of extended bed rest. The right mattress plays a meaningful role in reducing that risk.

This guide explains what pressure injuries are, why they develop, and how different mattress types are designed to help.

What Causes Pressure Injuries

Pressure injuries develop when sustained pressure on a specific area of the body reduces blood flow to the skin and underlying tissue. The areas most at risk are those where bone is close to the surface: the heels, ankles, hips, tailbone, and the back of the head.

When a patient lies in the same position for an extended period, the weight of the body compresses the tissue between the bone and the mattress surface. Without adequate blood flow, tissue begins to break down. Early-stage pressure injuries appear as redness or discoloration that does not fade. Left unaddressed, they can develop into open wounds that are difficult and slow to heal.

Patients at higher risk include those who are unable to reposition themselves independently, those with reduced sensation, those with poor circulation, and those with fragile or compromised skin.

How Mattress Type Affects Pressure Distribution

Not all mattresses distribute pressure the same way. A standard foam or innerspring mattress creates concentrated pressure points under the heaviest parts of the body. Specialist homecare mattresses are designed to spread that pressure more evenly across a larger surface area, reducing the load on any single point.

The appropriate mattress type depends on the patient's level of mobility and their level of risk.

Foam Mattresses

A quality foam mattress conforms to the body and provides better pressure distribution than a standard residential mattress. It is a practical option for patients who are mobile, able to reposition themselves, and spending moderate rather than extended time in bed.

Foam mattresses are the most affordable option and require no power source or pump. They are a reasonable starting point for lower-risk patients and short-term recovery situations.

Pressure Relief Mattresses

Pressure relief mattresses are engineered specifically to reduce peak pressure at vulnerable points on the body. They use layered foam, gel, or a combination of materials to redistribute weight more evenly than standard foam.

These mattresses are well suited to patients who spend long periods in bed but retain some ability to reposition, and to patients who are at moderate risk of skin breakdown.

Alternating Pressure Mattresses

An alternating pressure mattress uses an electric pump to inflate and deflate different sections of the mattress surface in a continuous cycle. This movement shifts the points of pressure across the body regularly, preventing any single area from bearing sustained load.

Alternating pressure mattresses are designed for patients at higher risk: those who are unable to reposition themselves, those with existing skin concerns, or those in longer-term homecare situations where consistent pressure management is needed.

These systems require a power source and a pump unit that sits beside the bed. The pump produces a low level of noise during operation.

Low Air Loss Mattresses

A low air loss mattress releases a gentle flow of air through small perforations across its surface. In addition to pressure redistribution, this airflow helps manage moisture and temperature at the skin, which are contributing factors to skin breakdown.

Low air loss mattresses are used in situations where moisture management is an additional concern alongside pressure relief. They are typically recommended for higher-acuity homecare situations.

Other Factors That Support Skin Health

A supportive mattress is one part of a broader approach to skin health for patients in long-term bed rest. Regular repositioning, where the patient's care plan allows for it, remains important regardless of mattress type. Keeping the skin clean and dry, maintaining good nutrition and hydration, and inspecting pressure-prone areas regularly all contribute to reducing risk.

The right mattress supports that care routine. It does not replace it.

Choosing the Right Mattress

If you are unsure which mattress type is appropriate for your situation, speak with the patient's healthcare provider before purchasing. They can advise based on the patient's specific condition, mobility level, and risk factors.

Our team is also available to answer questions about the products we carry and help you understand the differences between models. Reach out before you order if you need guidance.