What are the benefits of a firm mattress?

The ideal mattress firmness is different for each person. Some sleepers prefer a mattress that gently cradles the body, while others prefer to lie on top of it. One drawback of an overly soft mattress is the lack of adequate support. Sinking too far into the mattress creates an unnatural arch, leading to discomfort or back pain. Some may also find it difficult to turn over in bed.

A firmer mattress promotes better spinal alignment, reduces muscle and joint strain, and allows easier movement during sleep. However, a firmer mattress may not suit everyone, so it’s important to consider the pros and cons before deciding if it’s right for you.

The benefits of sleeping on a firm mattress

Sleeping on a firm mattress offers several benefits, especially for heavier individuals or those who prefer a firmer sleeping surface.

Spinal alignment

Proper spinal alignment is essential for quality sleep. Firmer mattresses help keep the spine in a natural position, reducing strain on muscles and joints while distributing body weight evenly across the sleeping surface.

In contrast, softer mattresses allow heavier body parts, like the hips and buttocks, to sink deeper, which may cause the spine to curve unnaturally.

However, an overly firm mattress can cause pressure points, resulting in discomfort, aches, pains and numbness. The ideal mattress should conform to the body whilst keeping the spine aligned and correctly supported.

Less prone to sagging

All mattresses will eventually sag, but firmer mattresses are often made from more durable materials, making them more resistant to premature sagging.

Cooler sleeping surface

Mattress firmness can affect how warm or cool your bed feels. Firmer mattresses tend to sleep cooler because you lie on top of them. In comparison, softer mattresses conform more closely to your body and retain more heat. However, many manufacturers use breathable materials and cooling technologies in their mattresses to improve airflow and reduce heat retention.

Edge support

Firmer mattresses usually offer good edge support since they compress less under pressure. Edge support ensures the mattress perimeter remains sturdy and supportive. It extends the usable sleeping area and makes getting in and out of bed easier. Good mattress edge support particularly benefits couples who share a bed or those with mobility issues.

Durability

Firmer mattresses tend to be more durable because they are usually made from sturdier materials and are less likely to sag or compress around the edges. However, factors like construction quality, material quality, and care and maintenance can also affect a mattress’s longevity.

Changing sleeping positions

Turning over on a firmer mattress is generally easier because you’re not sinking as far into the mattress. An overly soft mattress can cause you to sink too deeply into the mattress. It can make you feel like you’re stuck in the mattress, and it requires more effort to turn over in bed.

Who are firm mattresses suitable for?

Firmer mattresses are ideal for heavier individuals, people with mobility issues, back and stomach sleepers, or those who prefer a firmer feel.

Heavier individuals

Your body weight is one of the main factors to consider when choosing a new mattress. Generally, the heavier you are, the firmer the mattress you’ll need. A softer mattress may provide adequate support for a lighter person weighing under 11 stone. However, someone weighing 16 stone (224 pounds) and above may sink too far into the mattress, putting the spine in an unnatural position. They may also find it difficult to turn over in bed.

In contrast, an overly firm mattress may prevent the body from sinking into the mattress, and the lack of cushioning may result in discomfort and painful pressure points.

Back and stomach sleepers

You should also consider your preferred sleeping position when choosing mattress firmness. Back and stomach sleepers often prefer a firmer mattress that maintains the natural alignment of the spine, while side sleepers typically prefer a softer mattress that cushions the shoulders and hips.

People with mobility issues

People with mobility issues may benefit from a firmer mattress. Firmer mattresses usually offer good edge support, making getting in and out of bed easier. Individuals with mobility issues may find it difficult to turn over in bed. A firmer mattress provides more resistance or pushback, making it easier to change positions.

Why do medical professionals recommend firm mattresses?

Mattress firmness often comes down to personal preference. Firm mattresses are popular as they provide an even sleeping surface and can help promote better spinal alignment. However, there is a misconception that firmer mattresses are better for your back.

In the past, medical professionals often recommended firm mattresses to their patients. Some would even suggest placing a board under the mattress to make the bed feel firmer.

For years, it was felt that a firm mattress was better for people with bad backs. However, this advice has since changed as medical professionals develop a greater understanding of back problems and the importance of choosing a mattress that provides proper support.

Partner considerations

If you share a bed, it’s important to consider both your needs and your partner’s. You may need to compromise on mattress firmness, especially if you have significant differences in weight or comfort preferences. Choosing a mattress with medium support can be a good compromise.

Alternatively, you could consider a split tension mattress, which allows each person to have their side in their preferred firmness. Another option is a zip and link bed, where two separate mattresses can be joined to create one large bed. This allows each person to choose their preferred firmness without compromising on comfort or support.

How do you know if a mattress to firm?

If your mattress is uncomfortable or you are experiencing aches, pains, numbness and painful pressure points, it could be too firm.

A handy check to determine whether your mattress is too firm is to lie on your mattress on your back and slide your hand under the hollow part of your back. If you can easily slide your hand underneath your back, the mattress may be too firm. You can also ask someone to check your sleep posture while you lie down and take a picture if necessary so you can see for yourself if your body alignment is correct.

What is the difference between a firm mattress and an orthopaedic mattress?

An orthopaedic mattress is essentially a firm mattress. Mattresses labelled orthopaedic have not necessarily been medically endorsed or proven to provide medical benefits.  However, they can help improve spinal alignment and offer targeted support.

Final thoughts

Although mattress firmness often comes down to personal preference, you should also consider factors like your body weight. You don’t necessarily need a firm mattress, but it should offer enough cushioning to conform to your body shape.

If you are experiencing back pain or need specific advice about mattress firmness, consult your doctor or a medical professional.