Free delivery on mattresses over R$400.00*
  • Home
  • Post
  • What is a sommier and what is it used for? A complete guide.
Published on 6/26/2026

What is a sommier and what is it used for? A complete guide.

The bed base is one of the most underrated elements of a master bedroom. Many people carefully choose their mattress but completely ignore the bed base—and that's a mistake. In this article, we explain what it is, what it's for, and why it can make all the difference to your sleep.


What is a sommier?

A bed base (also called a bed frame or upholstered bed base) is a support base for a mattress, usually upholstered in fabric, that sits directly on the bed frame or on its own feet. Unlike a slatted bed base (which is rigid or flexible and leaves spaces between the slats), a bed base has a continuous surface and may have internal springs.


Types of bed bases

Fixed bed base

Rigid, upholstered base without springs. Offers even and firm support to the mattress. It is the simplest and most economical option.

Spring bed base

It has internal springs that absorb some of the weight and movement, complementing the mattress and increasing overall comfort. It works in conjunction with the mattress to create a more complete sleep system.

Articulated bed base

Allows you to adjust the angle of the head and/or feet, ideal for reading in bed, people with reflux or circulation problems, or simply for greater comfort. It can be manual or electric.


Bed frame vs. slatted bed frame: what's the difference?

Sommier Slatted bed frame
Surface Continuous With spaces between slats
Ventilation Minor Bigger
Additional comfort Yes (springs) It depends on the model.
Aesthetics More elegant Functional
Price Generally higher More economical

When does it make sense to choose a sommier (bed base)?

  • If you want a room with a more elegant and finished look
  • If you have a foam or memory foam mattress (which benefit from a continuous base)
  • If you want to add an extra layer of comfort and cushioning
  • If you have mobility issues and prefer an articulated base

Which mattress should I use with a bed base?

Not all mattresses are compatible with box springs. Traditional spring mattresses on a box spring base can create too much elasticity and instability. The ideal combination is:

  • Spring bed base + foam or memory foam mattress
  • Fixed bed base + any type of mattress

Conclusion

A bed base isn't just a support—it's an integral part of your sleep system. Choosing the right bed base for your mattress can significantly improve the quality of your sleep. At PlateaHome you'll find bed bases and box springs in various models and sizes, with delivery throughout Portugal.

Send us a WhatsApp message