Free Air Stream

Sea to Summit Comfort Plus Rectangular Insulated Sleeping Mat - Large

R-Value: 0.878 / Dimensions: 203 x 65 x 6.3cm / Packed Size: 12 x 26cm
Weighs 1162g (excluding bag)
Code: SS16A623
  • Now £174.99
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  • Get a Free Sea to Summit Air Stream Pumpsack (Worth £29.99) with this mat (Ref: SS15962)
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The Sea to Summit Comfort Plus Insulated Mat is designed with two layers of high resolution cells that can be pressurised independently, allowing fine-tuning for comfort and redundancy for punctures.  

Sea to Summit says:

Our Comfort Plus Insulated sleeping mats with their dual layer construction provide the most effective system for fine-tuning the level of comfort available in any air mattress today.

The two independent high-resolution cell layers give excellent support by distributing your body weight and shape over more cells. The two layers are also offset for more uniform insulation and cushioning. Because the two layers can be pressurized independently, the top layer can be inflated to your personal comfort, while maintaining a high-pressure base layer for protection from rough or uneven terrain. Both layers can be adjusted independently using the fine tune valve to get just the right level of softness and support.

We use Exkin Platinum, a quiet non-woven fabric, to reflect radiant heat loss back to the user and Thermolite insulation to prevent convective heat loss between your body and the ground.

The air sprung cells are the core technology of this mat, allowing you to have a comfortable nights sleep. Instead of the typical baffled construction, these sleeping mats are constructed using a matrix of air cells that move independently to conform to your body’s shape without affecting adjacent cells. Translated to backpacker-speak, that means you don’t flatten out spots under, say, your hipbones or shoulders.

The mat’s firmness can be more finely tuned with Dual Layer construction – The bottom layer is inflated firm for height, then the top layer inflated to the desired comfort level. What's great about the dual layer, is that if you do end up with a puncture in one layer of the mattress, the other layer remains fully functional. That's always good to know as accidents can happen.

The comfort plus insulated mat may be heavier than the rest of the Sea to Summit mat range and have a slightly larger pack size, but as it's warmer I would expect that. Plus the rectangular shape provides you with more room to sleep without touching the cold ground.

- Reviewed by BasecampGear

Read reviews here:      
  • Exkin Platinum® fabric and Thermolite® insulation are combined to prevent radiant and convective heat loss
  • Available in tapered and rectangular shapes
  • Dual layer design ensures a level of built-in redundancy; if you do end up with a puncture in one layer of the mattress, the other layer remains fully functional
  • Multi-function valve for easy inflation, deflation and fine tuning of air pressure
  • 40D rip-stop nylon face fabric offers the right balance between weight and durability
  • Our TPU lamination process - one used in the medical and aeronautical industries but unique to the outdoor industry - is vastly superior to the roll-to-roll lamination process that is commonly used in outdoor products at present. The TPU bonds better and more consistently, virtually eliminating delamination issues
  • Comes with a quality stuff sack, a repair kit containing six self adhesive patches for repairing punctures in the field, and a spare silicone one-way valve flap
  • Our Comfort Plus Insulated mats should be used right side up. A Sea to Summit logo and size graphic are printed on the side of the mat that should be up when in use
  • Extended storage instructions: mat should be laid flat, folded as few times as possible with valves open
  • Weight: 1162g
  • Dimensions: 203 x 65 x 6.3cm
  • Packed size: 12 x 26cm
  • R Value: 5 (US) 0.88 (SI)
  • Number of Air Sprung Cells: 788
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