
Construction
Three foams, one feel.
Kaizen (改善) means continuous improvement. Each layer does one thing better than the one before.
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1
Breathable fabric
With antibacterial and anti-dust-mite treatment.
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2
Fuwari quilting
The layer you feel as you lie down. Light and soft, without sinking.
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3
Nemuri Comfort foam
Middle layer, developed to be more breathable than traditional memory foam.
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4
HR Utakata core
High resilience. This is where the stability and durability of the mattress come from.
Kaizen, Kumo or Shinobi?
Three foam mattresses, no springs. The difference is in the number of layers and the height.
| You are viewing this oneKaizen | Kumo | Shinobi | |
|---|---|---|---|
| Structure | Three foam layers | Single high-resilience foam | Memory foam + high resilience |
| Firmness | Medium | Medium | Medium |
| Height | 23 cm | 20 cm | 30 cm |
| Feel | Enveloping, without excess | Simple and direct | Enveloping with greater height |
| Choose it if | You want the cradled feel at a balanced price | It is a first home, guest room or rental | You want to make the definitive step up in quality |
| Price from | 249 € | 149 € | 419 € |
What the Advisor says
“For those who want to feel cradled by the mattress.”
When someone tells me they want to feel cradled by the mattress, I recommend the Kaizen. It has the right memory foam for that effect without crossing into excessive softness — and it is what many customers ask for without knowing the technical name.
— Ana Cristina, Sleep Advisor
- 100 nights to decideIf it is not the right one, we collect it at your home and refund the amount, at no cost.
- 10-year guaranteeCovers manufacturing defects and loss of support. Made in Portugal.
- Free delivery in 5 daysMainland Portugal. You will receive notice with the date before delivery.
Perguntas frequentes
Compared with the Kumo?
The Kaizen has more layers and a more enveloping feel. The Kumo is simpler, firmer and cheaper.
Does it get hot?
Traditional memory foam gets hot. Nemuri Comfort was developed to be more breathable. In very hot climates, a cooling topper helps.
Is it recommended for couples?
Yes. The foam absorbs movement — one person moving does not wake the other.
Is it suitable for back pain?
For comfort, yes. For lower back pain requiring firm support, the Hisui is the right choice.
How long does it take to adapt?
14 to 21 nights.