Sea to Summit Ultralight XR Insulated Air Sleeping Mat
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Product Description
ULTRALIGHT INSULATED AIR SLEEPING MAT WITH AIR SPRUNG CELLS, 6.5 CM THICKNESS, 3.6 R-VALUE, THERMALCORE INSULATION AND INTEGRATED AIRSTREAM PUMP SACK
The Sea to Summit Ultralight XR Insulated Air Sleeping Mat is built for backpacking, bikepacking and thru-hiking where low packed weight, reliable warmth and proper sleep comfort all matter. It delivers a stable, supportive sleep surface without loading your pack with unnecessary bulk.
151 Air Sprung Cells contour to your body to reduce pressure points and create a more stable sleeping platform. The wider profile gives extra room for side sleepers, restless sleepers and anyone who wants a little more space to roll without sliding off the mat.
ThermalCore insulation reflects body heat to boost warmth, giving the mat an R-value of 3.6 for reliable three-season performance. At 6.5 cm thick, it offers adjustable firmness and enough cushioning for comfortable nights on varied terrain.
The hybrid 30/40D nylon construction and liquid-extruded TPU laminate are designed for proven durability through repeated outdoor use. The Ultrafresh-treated TPU laminate helps protect the mat, while the compact packed size keeps it practical for fast and light missions.
Inflation is quick with the integrated Airstream pump sack, and the XPRESS valve makes inflation, pressure adjustment and rapid deflation simple. Included PillowLock patches help secure compatible Sea to Summit pillows in place through the night.
UNMATCHED STABILITY
- 151 Air Sprung Cells contour to your body
- Helps reduce pressure points for a stable, comfortable sleep
- Supportive construction gives a more settled feel than many ultralight mats
- Designed for consistent comfort across uneven campsite surfaces
WIDER SLEEPING PROFILE
- Extra width suits side sleepers and those who roll over often
- Wider profile gives more room to shift position through the night
- Large model offers extra shoulder and hip space
- Comfort-focused shape improves sleep quality without excessive packed bulk
PROVEN DURABILITY
- Hybrid 30D and 40D nylon construction is built for rugged use
- Liquid-extruded TPU laminate improves long-term reliability
- Engineered with stronger welds and better lamination
- Designed to last season after season
THERMALCORE INSULATION
- ThermalCore insulation reflects body heat
- R-value of 3.6 supports reliable three-season performance
- Helps reduce heat loss from the ground
- Boosts warmth while keeping packed size compact
ULTRALIGHT AND COMPACT
- Lightweight design is ideal for backpacking, bikepacking and thru-hiking
- Small packed size makes it easy to fit into a lightweight pack setup
- Available in Small, Regular and Large
- Balances low weight, warmth, durability and comfort
FAST INFLATION AND PILLOWLOCK SUPPORT
- Integrated Airstream pump sack makes inflation fast and easy
- XPRESS valve allows inflation, pressure adjustment and rapid deflation
- 6.5 cm thickness gives adjustable firmness for personalised comfort
- Included PillowLock patches help secure compatible Sea to Summit pillows
MAT MATERIALS
- Mat: 100% nylon
- Valve: 100% TPU
- Insulation: TRM Reflective Film
- Stuff sack: 100% nylon
CONSTRUCTION
- Hybrid 30D and 40D nylon fabric
- Liquid-extruded TPU laminate
- Ultrafresh-treated TPU laminate
- 151 Air Sprung Cells for contoured support
- ThermalCore insulation for heat reflection
INCLUDED ACCESSORIES
- Integrated Airstream pump sack
- Stuff sack
- PillowLock patches for compatible Sea to Summit pillows
CARE
- Wipe clean when needed
- Dry fully before storage
- Store loosely with the valve open when possible
- Keep away from sharp objects, flames and excessive heat
- Use on cleared ground or with a tent floor for best durability
| Specification | Details |
|---|---|
| Product Type | Insulated ultralight air sleeping mat |
| Available Models | Small, Regular and Large |
| Best Use | Backpacking, bikepacking and thru-hiking |
| R-Value | 3.6 |
| Thickness | 6.5 cm |
| Support System | 151 Air Sprung Cells |
| Insulation | ThermalCore insulation with TRM Reflective Film |
| Inflation | Integrated Airstream pump sack |
| Valve | XPRESS valve, 100% TPU |
| Mat Material | 100% nylon |
| Fabric Construction | Hybrid 30D and 40D nylon |
| Laminate | Liquid-extruded TPU laminate with Ultrafresh treatment |
| Stuff Sack | 100% nylon |
| Pillow Compatibility | Includes PillowLock patches for compatible Sea to Summit pillows |
| Best Use Conditions | Three-season backpacking, compact camping, bikepacking and thru-hiking |
The Sea to Summit Ultralight XR Insulated Air Sleeping Mat is available in Small, Regular and Large. Choose your size based on body height, packed weight and preferred sleeping width.
| Model | Weight | Packed Weight | Packed Size | Dimensions | Recommended User Height |
|---|---|---|---|---|---|
| Small | 390 g | 434 g | 19 x 10 x 10 cm | 168 x 55 x 6.5 cm | Up to 168 cm |
| Regular | 415 g | 464 g | 19 x 10 x 10 cm | 183 x 55 x 6.5 cm | Up to 183 cm |
| Large | 530 g | 573 g | 22 x 10.5 x 10.5 cm | 198 x 64 x 6.5 cm | Up to 198 cm |
What is the Sea to Summit Ultralight XR Insulated Air Sleeping Mat best used for?
It is best used for backpacking, bikepacking and thru-hiking where low weight, compact packed size and insulated comfort are important.
What is the R-value of the Ultralight XR Insulated Mat?
The Ultralight XR Insulated Mat has an R-value of 3.6, making it suitable for three-season use in many conditions.
How thick is the Ultralight XR Insulated Mat?
The mat is 6.5 cm thick and allows adjustable firmness for personalised comfort.
Why choose the Ultralight XR over the Ether Light XR?
The Ultralight XR is lighter than the Ether Light XR. Its construction creates a firmer, more stable sleeping surface, which some users prefer over the more plush feel of the Ether Light XR.
Is the Ultralight XR Insulated Mat noisy?
The smooth, high-thread-count fabric can become somewhat stiff when laminated, which may create some contact noise. Placing a soft layer on the mat can help reduce this.
Is the R-value ASTM tested?
Yes. Sea to Summit mats are ASTM tested for R-values, giving comparable thermal performance data across sleeping mats.
How do you inflate the Ultralight XR Insulated Mat?
It inflates using the integrated Airstream pump sack and the XPRESS valve, which also allows pressure adjustment and rapid deflation.
Which size should I choose?
Choose Small for users up to 168 cm, Regular for users up to 183 cm and Large for users up to 198 cm or for extra sleeping width.
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