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The Comfort Light Self Inflating mattress Sea To Summit is an insulated self-inflating mattress.
The Comfort Light Self Inflating uses the method Delta Coring verticale, which brings lightness, so that the total weight of the mattress is reduced by 20%. With an R-value of 3.1, this mattress offers excellent insulation for its weight and price.
In areas where warmth is needed: Shoulders, Hips, Feet, the structure has been designed so that the holes are as small as possible in order to provide more warmth. In other areas, the holes are bigger in order to reduce the overall weight and volume of the mattress.
It Comfort Light Self Inflating has Anti-slip sections on the top and base to keep your sleeping bag and mat in place. This mattress also features a high-flow, multi-functional valve for one-way inflation and more precise adjustment for Comfort.
The Comfort Light Self Inflating is a self-inflating mattress that is comfortable, robust, lightweight and offers excellent performance!

- Outer material: lightweight 30D Polyester with extrusion-laminated TPU
- The continuous foam layer on the top and bottom of Delta Cores™ eliminates cold spots along the entire length of the mattress.
- Horizontal triangular construction to reduce weight and volume without compromising comfort
- Non-slip print on top and bottom to keep it in place
- The high-flow multi-function valve allows for quick inflation, deflation and precise adjustment for personalised comfort.
- Thickness: 5cm
- R-Value: 3.1
| TAILLES | Small: | Regular | Wide |
| DIMENSIONS (cm) | 170 x 51 | 183 x 55 | 198 x 64 |
| DIMENSIONS PLIÉE (cm) | 11 x 28 | 14 x 28 | 15 x 33 |
| POIDS (g) | 595 | 650 | 880 |
Technologies:
| MULTI-FUNCTION VALVE | To facilitate the inflation and deflation of its air mats, Sea to Summit has developed the multifunction valve.This valve incorporates an inflation port with an unidirectional valve to prevent air loss before the valve is closed, a deflation port with quick air release, and a fine adjustment button to adjust comfort, all in a compact and discreet unit.It has also been designed to allow easy attachment of a pump for simpler inflation. |
| Delta Core Technology | The innovative system Delta Core maximises the comfort and thickness of our self-inflating mats while minimising weight and bulk. 40% of the initial volume of PU foam is removed from the horizontal delta-shaped cores, minimising weight and bulk. It is important to note that the upper and lower surfaces of the PU foam remain completely intact. This ensures consistent warmth throughout the entire length of the mattress and significantly improves the grip of the foam on the cover fabric, reducing the risk of delamination. |
| EXTRUSION LAMINATION | Extrusion rolling is common in the medical and aeronautical sectors, but Sea to Summit was the first to use it for products outdoors. Liquid thermoplastic urethane is applied to the surface fabric via an extrusion head, where it bonds permanently. The result: Floor mats Sea to Summit are more reliable and durable. |
| PILLOW LOCK SYSTEM | The system Pillow Lock includes self-adhesive hook-and-loop patches that are supplied with all sleeping mats Sea to Summit (from spring 2019 onwards). Attached to your sleeping mat, these patches secure your pillow and prevent it from slipping—without causing any adhesion or grip on clothes or other fabrics. |