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The Ultra Light Self Inflating Orange is an ultra-light, self-inflating trekking mattress from the brand Sea to Summit.
The Delta Core™ construction of this model ensures optimal weight distribution, providing you with maximum comfort during your sleep. It also reduces the weight of your mattress by approximately 20%: perfect for carrying on your back during treks and hikes! The heat distribution has also been carefully designed to offer you the best possible comfort. The 75D polyester fabric with laminated TPU makes it a robust and mould-resistant model.
This mattress features a multi-function valve with a high flow rate to allow one-way inflation, as well as more precise adjustment for comfort. It is equipped with Pillow Lock™ technology, which allows you to attach an Aeros™ pillow to your mattress. Its non-slip coating will prevent you from sliding off your mattress. With an R-Value of 2.6, this model can be used from early spring to late autumn. For your treks and hikes, even on cool nights, choose the Ultralight Self Inflating!

- Lightweight
- Non-slip coating
- Robust and durable
- Reversible and multifunction valve
- Pillow Lock™ system
- Delta Core-V construction
- Repair kit included
| Delta Core -V™ | This strategic mattress construction increases heat retention in areas where it is needed and reduces mattress weight in areas where less heat is required, resulting in an overall weight reduction of approximately 20%. |
| Pillow Lock™ | This system allows you to attach an Aeros™ pillow to your Sea to Summit mattress to prevent it from sliding. |
| ASTM F3340-18 | Standardised mattress insulation certification system. |
Composition:
- Outer material: 30D Polyester, TPU laminated
Dimensions:
| Size | Small | Regular | Large |
| Length | 170 cm | 183 cm | 198 cm |
| Width | 51 cm | 51 cm | 64 cm |
| Weight | 520 g | 550 g | 720 g |
| Packed dimensions | Ø 13 x 26 cm | Ø 13.5 x 26 cm | Ø 14.5 x 33 cm |