Mattress thickness: choosing the ideal height for truly restorative sleep
L'mattress thicknessis often perceived as a simple aesthetic criterion. In reality, it directly influences thecomfort level, support quality, durability and ergonomic performanceof your bedding.
A mattress that's too thin may lack support, while a model that's too thick, poorly suited to your body shape or bed base, may not provide the expected benefits. Understanding the differences between a 15 cm, 20 cm, 25 cm, or 30 cm mattress allows you to make an informed and lasting choice.
Why is thickness so important?
The thickness of a mattress determines:
- The number of integrated technical layers
- The quality of the back support
- The absorption capacity of pressure points
- The longevity of the mattress
- The immediate feeling of comfort
The thicker a mattress is, the more technologies it can combine (high-resilience foam, memory foam, latex, pocket springs), thus offering aprogressive and structured comfort.
15 cm mattress: for occasional use or for children
Amattress 15 cm thicksuitable mainly for:
- To the children's beds
- Toextra beds(extra mattress)
- To the bunk beds
- To the secondary rooms
Its advantages:
- Light
- Easy to handle
- Affordable price
However, for an adult in daily use, it may lack sufficient depth of support, especially in cases of lower back pain.
20 cm mattress: standard comfort
THE20 cm mattressrepresents an entry into everyday comfort.
It is suitable:
- For slender builds
- To young adults
- With controlled budgets
It offers adequate support but generally incorporates fewer technical layers than a thicker model. For extended use, a more structured model is often recommended.
25 cm mattress: the ideal balance
THE25 cm mattressis now considered the best compromise between comfort, performance and durability.
For what ?
- Optimized multi-layered structure
- Comfortable welcome and progressive support
- Suitable for most sleepers
- Very good durability
A 25 cm mattress allows for the inclusion of:
- A high-density support base
- A stabilizing transition layer
- A comfort layer (memory foam or latex)
It is perfectly suited for everyday use, including in 160x200 or 180x200 cm.
30 cm mattress: premium comfort and enhanced support
THEmattress 30 cm thickembodies the high-end.
It is particularly recommended for:
Its benefits:
- Deep and structured support
- A welcoming, enveloping feel without sagging.
- Excellent sleeping independence
- Superior durability
The greater the thickness, the more gradual and balanced the feeling of comfort.
Thickness and shape: how to adapt your choice?
Lightweight build (under 60 kg)
- 20 to 25 cm is usually sufficient
- Soft to medium-firm comfort recommended
Average build (60–90 kg)
- 25 cm recommended
- Semi-firm support
Large build (+90 kg)
- 25 to 30 cm minimum
- Reinforced structure
- Strong support
A mattress that is too thin for a high weight is likely to sag more quickly.
Thickness and back pain
For people suffering from lower back or neck pain, thickness plays a crucial role.
A mattress25 to 30 cmallow :
- Improved spinal alignment
- A reduction in pressure points
- Pelvic stability
- Improved muscle recovery
Models incorporating shape memory or multi-zone pocket springs are particularly suitable.
Thickness and technology
Foam mattress
- 20 cm: basic comfort
- 25 cm: for everyday use
- 30 cm: reinforced support
Memory foam mattress
A layer that is too thin limits ergonomic effectiveness. Sufficient overall thickness optimizes support and a snug, enveloping feel.
Pocket spring mattress
In sizes from 25 to 30 cm, they offer:
- Sleeping independence
- Natural ventilation
- Sustainable support
Below are our different technologies:
Thickness and large sizes
In 160x200, 180x200 or 200x200 cm, a minimum thickness of 25 cm is recommended to ensure even support over the entire surface.
Large dimensions require a more robust structure to prevent central sagging.
Choosing the right size is crucial for comfort.
The larger the size, the more essential sleeping independence becomes, especially for couples.
Thick mattress = more durable?
Generally, yes. A thicker mattress:
- Contains more supporting materials
- It resists subsidence better.
- Retains its comfort for longer
- Better withstands heavy use
Thickness directly contributes to longevity.
L'mattress thicknessThe height of your bed should never be chosen randomly. It determines the comfort, the quality of support, and the lifespan of your bedding. By taking into account your body type, your preferred technology, and how often you use it (daily or occasionally), you can select a perfectly suited height.
A mattress of the right thickness guarantees a more stable, more comfortable and more lasting sleep.
