WAVE Σ (Hard) Futon

We have combined two types of urethane foam with different hardness and a low uneven structure to create a unique three-layer structure that allows for easy turning over.
The two surface layers with different hardness flexibly accommodate changes in sleeping position that occur every time you turn over.
The sturdy lower part firmly supports the body, even with the weight of a large man, without sinking.

Monogram slits for increased breathability

The slits engraved into the surface of the urethane allow moisture that tends to accumulate in the sleeping area to quickly escape, creating a fresh, stuffy environment.

WAVE Σ is available in two hardness levels.

You can choose from two types of mattresses, hard (firm) and regular (soft), depending on your body type.
The table serves as a guide for your selection.

Can be further customized to fit your body type

For those with particularly extreme unevenness, the support pad (sold separately) can be used to adjust the amount of support provided from below in specific areas.
By placing support pads in the gaps around your waist and behind your knees, you can provide more support for those gaps and sleep more comfortably.

Staff: Takako Kanauchi

I also use this wave.

This mattress is not too hard, and the words "firm support" are perfect for it.
It doesn't feel like you're sinking in like memory foam, but rather has a unique feeling of sinking in just enough, which is very popular with larger people and those who prefer a firmer mattress.

In particular, the ease of turning over in bed reduces unconscious stress, and many people say they wake up feeling refreshed.

This mattress is also recommended for those who suffer from back pain.

This mattress has been on the market for over 20 years and has been constantly improved based on customer feedback, making it a highly reliable product.
With daily use, the firmness will adapt to the sleeping style of the person, and the comfort will improve each time you use it. The mattress has a high firmness of 125 Newtons, so it supports the body firmly and is excellent for turning over.
Recommended for those who prefer a firm sleeping experience or for larger people.