When you’re staring down a chilly night on your next winter camping trip or alpine adventure, the Sea To Summit Ether Light XR Pro Insulated Air Sleeping Mat Large is your secret to achieving quality sleep.

This four-season sleeping mat adds luxury to the outdoors with a 7.4 R-Value and plush, 10cm thick Air Sprung Cell construction for stable comfort, no matter whether you’re a side sleeper or back sleeper. The XR Pro boosts the weld strength by double compared to its predecessors, giving you the ultimate peace of mind that this sleeping mat is built to endure some of the coldest terrain.

You don’t feel the frosty ground thanks to ThermalCore insulation that reflects your body heat back to you with 5 layers of reflective material. The TRM layers minimise the movement of internal air, boosting warmth while remaining lightweight, virtually silent and compact on the go. 

When you set up your sleep system for a cosy night, the built-in Airstream pump in the stuff sack takes just one breath to inflate, then requires only 2-3 cycles to fully inflate your mat. This is more convenient and less tiring on your lungs than blowing up your mat directly with traditional mouth-inflation, while preventing moisture from your breath from getting trapped inside the mat. 

The PillowLock system ensures your pillow stays in place all night. The specialised XPRESS valve features a one-way inflate port for worry-free inflation and user-friendly fine tune button to personalise the pressure. When you’re ready for your next destination, the rapid air-dump deflate port makes it easy to roll up and go without air re-entering. 

“More insulation, increased durability, but less weight and a smaller pack size - perfect for all-season adventures. It has been designed for hiking and adventuring in the coldest environments… but it won’t weigh you down in milder conditions.” - Ryan, Sea To Summit

Key Features:

• 10cm Thick: For luxurious comfort during cold weather camping, backpacking and mountaineering in rugged environments. 
• ASTM-tested R-Value Of 7.4: For warmth during four-season use, including in alpine conditions.
• Large Size: Spacious 198 × 64 × 10cm tailored for a recommended user height of up to 198 cm so taller campers can move freely. 
• Tapered Design: Ideal for saving weight on your next outdoor adventure. 
• Easily Portable: According to Sea To Summit, it weighs 25% less and takes up significantly less space when packed than previous versions.
• Ultra-durable: Superior weld strength improves the longevity of your sleeping mat.
• Air Sprung Cell Technology: Ensures cloud-soft comfort all night in any sleeping position. 
• Personalised, Supportive Feel: Disperses pressure evenly for a stable night’s rest and wobble-free comfort while adapting to your body.
• ThermalCore Insulation: Reflects your body heat back to you while remaining lightweight and ensuring a more compact packed volume.
• 30D/40D Fabric with TPU Lamination: Reduces sound and weight without compromising durability.
• PillowLock System: Keeps your Sea To Summit Aeros Pillow (not included) secure during the night.
• XPRESS Valve: Includes a one-way inflate port, fine-tune button and rapid air-dump deflate port.
• Included Essentials: Keeping you primed for adventure, the Ether Light XR Pro comes with a stuff sack with built-in Airstream Pump, PillowLock patches and repair kit.
• Airstream Pump: Allows you to achieve inflation easily - less fuss, full inflation.

Brand : Sea To Summit

Gender : Mens

Gender : Womens

Gender : Unisex

Product Family : Sea To Summit Ether Light

Length : Large

Shape : Mummy

Insulated : Yes

Self-Inflating : No

Weight : 720g | 25.4oz

Packed Weight : 780g | 27.5oz

Stuff / Pump Sack Weight : 60g | 2.1oz

Thickness : 10cm | 3.9in

Dimensions : 198 × 64 × 10cm | 78.0 × 25.2 × 3.9in

Packed Dimensions : 24 × 12.5 × 12.5cm | 9 × 5 × 5in

Fits Up To Height : 198cm | 77.95in

Materials :

• Mat: 100% Nylon
• Valve: 100% TPU
• Stuff Sack: 100% Nylon