Sumo Orthopedic Mattress
Sumo Orthopedic Mattress
Sumo is weight, strength, structure.
Sumo (相撲) evokes, in Japanese, the wrestler who supports the weight without giving in. This mattress was designed with this logic: a traditional Bonnel spring structure, high firmness, and uniform support across the entire surface.
It's the traditional mattress reinvented – no viscoelastic, no complicated layers. The focus is on what makes a mattress durable: a solid internal structure that can withstand weight and intensive use.
Who is it for?
- Those who prefer a traditional firm mattress (an "old-school good" style)
- People with a medium-to-high weight who need stable support
- Those who have had negative experiences with viscoelastic (it heats up, they "sink in")
- Those looking for superior durability for the price
What the Advisor says
"When someone tells me 'I prefer old mattresses, these soft ones aren't for me' – I recommend Sumo. Classic Bonnel spring structure, firm, no luxury promises. For those who prefer traditional, well-made products, it's one of the most durable."
— Ana Cristina, Dreamura Sleep Advisor
Technology
- Highly resistant Bonnel spring core — traditional structure
- Uniform support across the entire surface (no zones)
- High breathability characteristic of springs
- Resistant and durable structure
Specifications
- Height: 21 cm
- Firmness: high
- Structure: Bonnel springs (classic, not pocketed)
- Allows rotation and flipping for greater durability
- Made in Portugal
Guarantees and logistics
- 100 nights home trial
- 3-year warranty
- Free delivery in mainland Portugal, within 5 business days
- Payment in 3 interest-free installments with Klarna
Frequently asked questions
What's the difference from pocket springs?
Bonnel springs are linked together — firmer, more durable, less adaptive. Pocket springs are independent — more comfort, more adaptation. Bonnel is a classic structure.
What does "orthopedic" mean?
High firmness for spinal support. It's not a medical claim — it's a description of high firmness with uniform support. For clinical conditions, talk to your doctor.
Does it make noise like old springs?
Little. Modern Bonnel springs have a treatment that reduces sound, but they make more sound than pocket springs. If you are sensitive to sound, consider Sora or Takumi.
Can't find the size you're looking for? Contact us OR CALL US DIRECTLY AT +351 21 150 95 04
Couldn't load pickup availability

Sumo Spring Mattress
Inspired by the need for firm and consistent support, the Sumo was developed to provide stability and proper spinal alignment during rest. Its robust structure guarantees a continuous feeling of firmness, ideal for those who value support and durability. It combines quality materials with a functional design, offering a balanced, stable and long-lasting sleep experience.
Collapsible content
Features and Benefits
① Kaede Stretch Fabric
Soft and breathable fabric that follows the natural movements of the body, ensuring comfort from the first touch.
② Nami Kiruto Padding
Structured padding that distributes weight evenly, providing a comfortable and stable base.
③ Nemuri Foam
Comfort layer that improves body adaptation, balancing support and softness.
④ Bonnell Spring Core
Traditional spring system that offers high firmness, resistance, and excellent internal ventilation.
Design
The Sumo Orthopedic Mattress features a functional design, created to prioritize stability and durability. The top, with its geometric quilted pattern, conveys a sense of order and consistency, reflecting its firm and balanced structure.
Its simple and refined aesthetic reinforces the essence of an orthopedic mattress: to offer reliable support and continuous performance over time. Developed for those who value efficiency in rest, it combines robustness with essential comfort for a peaceful night's sleep.
Firmness
This mattress offers a high level of firmness, providing more stable and consistent support throughout the night. Its structure helps maintain correct spinal alignment, promoting a more balanced posture during rest.
Ideal for those who prefer firm surfaces or require greater support, it ensures a feeling of security and stability in any sleeping position.
-
Bonnel spring technology
An interconnected spring system that ensures firm and uniform support across the entire mattress surface, offering greater stability and durability over time.
-
Antibacterial and anti-mite.
This mattress was designed to be antibacterial and anti-mite, promoting a cleaner and healthier sleep environment.
-
Extra Firm
High level of firmness that provides a more rigid and stable support, ideal for those seeking greater support and correct spinal alignment during sleep.
With regular geometric quilting and well-defined seams, this top was designed to offer a stable and consistent surface throughout the night.
Its structure reinforces the feeling of firmness and continuous support, helping to keep the body well supported in any position. Simple, functional and effective, it reflects the essence of an orthopaedic mattress designed for those who value stability and durability in their rest.