4.51 of 5 starsSea to Summit - Ether Light XR Insulated ASC Mat - Sleeping mat
At a glance
Material information & features
- Suitable for:
- Men, Women
- Recommended use:
- bikepacking, camping, trekking
- Main material:
- 100% polyamide
- Material type:
- synthetic insulation
- Fabric treatment:
- TPU coated
- Fabric properties:
- abrasion-resistant, odour-resistant, insulated
- Thickness:
- 10 cm
- R-value:
- 4.5
- Season:
- three seasons
- Dimensions (outer):
- Small Mummy: 168 x 55 cm; Regular Mummy: 183 x 55 cm; Large Mummy: 198 x 64 cm; Regular Rectangular Wide: 183 x 64 cm; Large Rectangular: 198 x 64 cm
- Packed dimensions:
- Small Mummy / Regular Mummy: 20.5 x 11 x 11 cm; Large Mummy: 24 x 11.5 x 11.5 cm; Regular Rectangular Wide: 24 x 12 x 12 cm; Large Rectangular: 23.5 x 12 x 12 cm
- Weight:
- 525 g
- Reference size:
- Regular size
- Extras:
- inflatable, incl. pump sack, incl. repair kit, incl. transport pouch
- Misc:
- 500 g (Small Mummy); 665 g (Large Mummy/Regular Rectangular Wide); 725 g (Large Rectangular)
- Item No.:
- 560-1040
Product description
Comfort and stability despite minimal weight
Comfortable, reliable and user-friendly - the Ether Light XR Insulated ASC Mat from Sea to Summit! This high-quality technical sleeping mat is the ideal choice for campers seeking comfort with light luggage. ASC stands for Air Sprung Cell, an innovative technology with dozens of air-filled synthetic springs that provide stable support - regardless of your sleeping position.
Innovative production for maximum functionality
In addition, the sleeping mat features insulation made from high-quality materials using the latest laminating and welding techniques. Its central technology goes by the name of Thermal Core. A layer of reflective foil is applied between the spot-welded seams, which reflects radiant heat towards the sleeper and reduces air movement within the mat. As a result, the sleeping mat achieves effective insulation with minimal weight.
Plus, the durability and reliability of its construction is achieved through liquid-extruded TPU lamination and RF welded seams. This makes the Ether Light sleeping mat one of the most comfortable and reliable mats on the market!
The highlights at a glance:
- Consistently reliable materials
- Innovative design for exceptional efficiency
- Lots of comfort with low weight
Ask our experts
Alpinetrek expert Max
Reviews overview
Advantages
Disadvantages
Recommended use
What do you think about that?
This is what customers from around the world say:
80% have found the reviews
by Dirk helpful
-
Advantages
Lightweight Price / performance Comfortable Insulates well Easy to inflate -
Recommended use
Trekking
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Advantages
Easy to pack up Easy to inflate Comfortable Insulates well -
Disadvantages
Slippery surface -
Recommended use
Trekking All around
I have previously been sleeping on foam mats, which worked great for me in warmer weather, but as I keep trekking/backpacking in colder and colder temperatures, it became clear I needed something with a lot more insulation. In addition, foam mats are bulky, cannot be stowed inside of the backpack, and, therefore, often get wet, as most backpack rain covers are not large enough to protect the mat too. That is why I started to look for an inflatable mat that I could stow inside the backpack, but also one I could trust in subzero temperatures to keep me warm. The Sea to Summit Ether Light XR does exactly that.
When packed, it only takes up the size of a large water bottle, insulates very well when inflated, and is very light when you consider what is crammed into it. It went with me on a 2-week-long backpacking trip to Hardangervidda in Norway and though it was summer and temperatures did not fall below freezing, it fully delivered on these promises. The pump sack is a very comfortable way to inflate the mat, though one has to blow from far away if the goal is to prevent moisture from getting inside, which I was not able to fully avoid.
Time will show how durable the sleeping mat is, but it definitely feels like it is. Whilst it is maybe not the cheapest of sleeping mats, it is absolutely worth the money!
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Advantages
Lightweight Insulates well Comfortable Easy to inflate Compact -
Recommended use
Trekking
40% have found the reviews
by Steven helpful
The thread was edited on 26.08.25
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Advantages
Comfortable Easy to inflate Robust -
Disadvantages
Doesn't insulate well -
Recommended use
Trekking Expedition Camping
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Advantages
Lightweight Comfortable Price / performance Robust Compact Easy to pack up Easy to inflate -
Recommended use
Camping All around Trekking Expedition Ultra-light Travel
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Advantages
Insulates well Lightweight Comfortable Compact -
Recommended use
Travel Camping