How we test products
Our mission is to take the guesswork out of finding the perfect sleep products.
We've dedicated hundreds of hours to testing mattresses and sleep accessories, and rely on a team of testers of differing weights, temperature preferences, and sleeping positions to evaluate each product.
Tested products are granted the Sleep Hero tested stamp of approval, a mark of our review's reliability.
If we haven't personally tested a product, please be assured that we invest significant time and energy into scouring the UK market and researching the best recommendations, and we work with a team of sleep experts who review our articles, ensuring that the insights we provide are not only relatable but also reliable.
What type of sleeper is a firm mattress suitable for?
If you sleep on your back or your stomach or have a larger build, then we would strongly recommend considering a firm mattress.
In all of these cases, a firm mattress will offer the best night’s sleep. This is because it will keep the spine aligned, prevent your shoulder and pelvic areas from sinking in too deeply, and support the lighter parts of your body. All of this enables the spine to remain in its optimal position and prevents the body from sagging.
Sagging into a mattress can quickly lead to back or neck pains.
Choosing the desired firmness of a mattress depends largely on the individual person and body type. Weight, height, preferred sleeping position, and individual needs and preferences are all factors that determine the level of firmness you need. For example, a person sleeping on their stomach and weighing 60 kg will not need the same type of firmness as someone who weighs 90 kg.
You can also revert back to our guide on choosing the right degree of firmness to help you choose.
Level of support on a firm mattress
Sleepers that suffer from back, neck, or hip problems would generally benefit from a firmer mattress. This is because, over time, inadequate support in these areas can result in discomfort, pain, or even more serious long-term issues.
Receiving an adequate amount of support in these areas, then, is essential to prevent any problems.
The problem with sagging mattresses
A sagging firm mattress can be a big problem. A sagging mattress generally refers to a mattress with dents or sunk-in areas, which is a result of wear and prolonged overload. Sagging can occur with any mattress but is most common with poor quality mattresses. Sometimes, however, sagging may result simply because of the passing of time.
Mattresses that are very old no longer have the structure or materials necessary to provide sufficient support. An average lifespan of a good mattress is 8-10 years. However, your body weight and use of a mattress can increase or decrease the total lifespan of your mattress.