Sea to Summit Womens UltraLight Self Inflating Mat - Regular

ASTM R-Value: 2.9 / Dimensions: 170 x 53 x 2.5cm / Packed Size: 13 x 27cm
Weighs 578g (excluding bag)
Code: SS20615
  • £69.99
  • (FREE Delivery on orders over £15)
  • RRP £74.99
Item out of Stock | Usually dispatched within 24 hours

The Ultralight Self inflating mat offers warmth and comfort in a light and small package with the convenience of self inflation.

Sea to Summit says:

From backpackers trying to shed grams to car campers who want glamping luxury, our range of self-inflating mats provide consistent warmth along the full length of the mat in a compact, comfortable, easy-to-use package.

Designed to meet the unique needs of female physiology, our Women’s Mats provide increased warmth and sleeping comfort. Featuring a women’s
specific shape that is wider at the hip and narrower at the shoulder, we’ve also developed unique Delta Core™ and Delta Core-V™ profiles to provide extra warmth where women often feel the cold most.

In our Women’s Ultralight S.I. Mat, our Delta Core-V™ graduated pattern uses a mix of smaller holes and solid foam under core body zones to achieve increased warmth. In our Women’s Comfort Light and Comfort Plus S.I. Mats, we adjust the depth and shape of our Delta Cores™ to leave more insulating PU foam intact, creating a warmer core body zone and greater insulation from the outside elements.

Sea to Summit's UltraLight Self Inflating Mat does exactly that, as is, you open the valve and leave it to slowly suck air into it and inflate. You usually have to add a few breaths by mouth at the end and then close the valve...and sleep.

Self inflating mats have foam sandwiched between two outer fabric layers. The fabric is soft to the touch and tough at 30 denier, the foam inside is also high quality that will survive repeated compression cycles. The anti slip coating on the underneath will stop the mat sliding around your tent. The multi function valve is an excellent feature enabling to quickly switch from self inflation, one way inflation and deflation.

Whilst not being as comfortable as insulated airbeds self inflating mats are considered to be more durable - and if you do get a puncture you still have a layer of foam to lie on - with airbeds you would have nothing. The compression sack has daisy chains sewn on enabling you to attach it to the outside of your rucksack if required.

- Reviewed by Ultralight Outdoor Gear

Help and advice:
  • Wider at the hip and narrower at the shoulder
  • Multi-function, high flow-rate valve
  • Larger vertical Delta Cores™ in non-body contact areas reduce the mat’s weight and bulk
  • Anti-slip print on top and base keeps it in place
  • Lightweight 30D polyester with extrusion laminated TPU used on top and base
  • Pillow Lock™ attaches your Aeros™ pillow to your mat, holding it in place for a slip-free sleep
  • Weighs: 578g (excluding storage bag)
  • Dimensions: 170 x 53 x 2.5cm
  • Packed Size: 13 x 27cm
  • ASTM R-Value: 2.9

ASTM R-Value:

From 2020, there is a new industry standard for measuring the R-value (level of insulation) of sleeping mats – ASTM F3340-18. This new standard is the sleeping mat equivalent to the EN rating for sleeping bags.

You can now directly compare the R-value of mats rated using the ASTM F3340-18 with confidence that is a fair and accurate comparison between mats. In simple terms, the higher the R-value, the warmer the mat.

In general terms, an R-value below 2.0 is for summer use, 2.0 to 4.0 is for cooler 3 season use and 4.0+ is for winter temperatures. This will be also be dependent on your sleeping bag, how cold you sleep etc. Please contact our customer service team if you need advice on choosing the right mat for your activity.

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