Firm and Medium-Firm Mattress

The primary difference between a firm and medium-firm mattress is that it has no give when you lie on it, while medium-firm mattresses more readily conform to the shape of your body without sinking.

If you like sleeping on a firm surface, a firm or medium-firm mattress will suit you best, depending on how much you weigh.

The heavier you are, the softer a mattress feels, so people over 210 lbs should look at firm mattresses and people under 200 lbs medium-firm ones.

This article discusses the key differences between a firm and medium-firm mattress, including material composition and how they feel.

Let's jump in!

Firm mattress composition

Firm mattresses are designed for those who sleep on a solid surface. These mattresses are usually made of dense foam layers, providing a solid foundation that eliminates any give when lying down.

The materials used in a firm mattress are denser, giving the bed a firmer feel when lying down. It is common to find high-density latex, memory, and reflex foams in firm mattresses and thick gauge steel springs, which don't compress and make the bed feel solid, a characteristic some prefer.

What it's like to sleep on a firm mattress

Sleeping on a firm mattress can be a great experience if you're used to sleeping on a hard surface. The firm mattress provides a solid foundation that eliminates any give when lying down and helps reduce motion transfer, which is excellent for couples who share the bed.

However, a firm mattress may be too hard for you if you like to sink into your mattress (even just a little bit).

Firm mattress pros and cons

Pros

• Maximum edge support.
• Solid sleep surface. 
• More durable than softer mattresses.

Cons

• It can be too hard for some people.
• It may not conform to your body shape.
• It may not provide enough cushioning.

Medium-firm mattress composition

Medium-firm mattresses are great for those seeking firm support and cushioning. These mattresses have a softer foam layer that provides a comfortable sleeping experience while still providing support.

The materials used in medium-firm mattresses are not as dense as those used in firm mattresses, allowing the mattress to conform to the shape of your body and provide more cushioning. This makes them great for people who like to sleep on a softer surface but still need adequate support.

What it's like to sleep on a medium-firm mattress

Sleeping on a medium-firm mattress can provide you with the best of both worlds. The bed is firm enough to support and reduce motion transfer but soft enough to provide a comfortable sleeping experience.

The mattress will conform to your body shape, allowing you to sink into the mattress and find your ideal sleeping position.

Medium-firm mattress pros and cons

Pros

• Balanced support and cushioning. 
• Conforms to your body. 
• Excellent motion transfer reduction.

Cons

• It may not provide enough support for heavier people.
• It may not be as durable as a firm mattress.

What about orthopaedic mattresses?

"Orthopaedic" is a loose word in the mattress world because manufacturers can label any mattress with it. Generally, orthopaedic mattresses are substantial, but they are sometimes the best option if you like a firm mattress.

Assessing a mattress's technology and reviews is more critical than buying one based on whether it has an orthopaedic label.

Which firmness should you choose?

Firm mattresses are best for people weighing over 210 lbs, as they provide adequate support and won't sink in too much.

For those who weigh under 210 lbs, a medium-firm mattress is recommended as it will provide a comfortable sleeping experience while providing adequate support.

Ultimately, the best mattress for you will depend on your preferences and needs, such as if you prefer a little squishiness or none.

If you enjoyed this article, read our mattress buyer's guide.