A medium mattress sits in the middle of the firmness scale: some give at the surface, with steady support underneath. It's the feel most people find comfortable straight away, and it suits side and back sleepers, children and guests alike.
Our medium mattresses
- ComfortSleep 15: 15cm, reflex foam, in every size from shorty to European double. Light and easy to lift on a top bunk.
- DryComfort 15: 15cm, the same reflex foam under a fully waterproof cover.
- Florence Memory Sprung: about 15cm, open coil springs with a memory foam layer.
- A natural wool pocket sprung small double: 21cm, 1000 pocket springs with British wool, for older children's floor-level beds.
- CopperNest 1000: 25cm, pocket springs under memory foam, for teenagers and adults.
- CopperCloud 3000: 27cm, two layers of springs, for teenagers and adults.
Medium or medium-firm?
Medium has a little more give; medium-firm has a little more push-back. Side sleepers often prefer medium, because the shoulder and hip can sink in. Back sleepers, and children who are still growing, often prefer medium-firm.
Is a medium mattress good for children?
Yes. Most children sleep well on medium or medium-firm. For a bunk bed or high sleeper, the ComfortSleep 15 and DryComfort 15 are 15cm deep. Always check the maximum mattress depth on the bed's product page.
How we rate firmness
We rate every mattress from 1 (softest) to 10 (firmest):
- Medium-soft: about 4.
- Medium: 5 to 6.
- Medium-firm: 7.
- Firm: 8 to 9.
Medium mattresses: common questions
Is medium the same as medium-soft?
No. Medium-soft is a step softer. See our medium-soft mattresses.
Which medium mattress is best for bedwetting?
The DryComfort 15, which has a fully waterproof cover.
Which is best for a teenager's floor-level bed?
The CopperNest 1000 or CopperCloud 3000, or the natural wool pocket sprung small double.
Not sure which to choose? Message our family team with your bed's size and the maximum mattress depth on its product page, and we'll point you to the right mattress.
Written by the Millie & Jones family team. Last updated October 2026.