Sea to Summit Comfort Deluxe Large Wide Self Inflating Mat

ASTM R-Value: 6.5 / Dimensions: 76 x 201 x 10cm / Packed Size: 20.5 x 76cm
Weighs 2542g (excluding bag)
Code: SS18457
  • Now £184.99
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Luxurious extravagance for extended base-camping, Sea to Summit's Comfort Deluxe Self Inflating Mat is thicker, more comfortable than their other self inflating mats and features Delta Cores reducing weight and bulk. Multi-function high flow-rate valve for fast inflation, one-way easy deflation and simple fine tuning for comfort.

Sea to Summit says:

The Comfort Deluxe series has been designed to fulfill the expectations of the most demanding camping customer. These oversized models with 4 inches of plush thickness give you space to sprawl. This is the mattress for the ultimate night's sleep when car camping, canoeing or on extended base camp sojourns where the slight weight penalty isn't an issue.

The weight and pack size of the Sea to Summit Comfort Deluxe Self Inflating Mats make them unsuitable for backpacking, but offers luxurious extravagance for extended base camping and car camping.

With a whopping 10cm thickness and a luxurious 30D stretch knit fabric, the mat will keep you comfortable and supported while you rest up for your next adventure. It features Delta Core technology to maximise the comfort and thickness of the mat while minimising weight and bulk. There's a multi-function high flow-rate valve for fast inflation, one-way easy deflation and simple fine tuning for comfort.

So if you're after a thicker yet lighter self inflating mat then the Comfort Deluxe could be what you're looking for.

- Reviewed by BasecampGear

Help and advice:
Choosing a Sleeping Mat
 R-Value Explained
Read reviews here:

  • Utilizes Delta Core technology, This removes 40% of the foam horizontally which significantly reduces weight, increases comfort, and reduces the packed size.
  • Multi-function, patent-pending valve twists over to allow the mat to be rolled tightly without fighting re-inflation as you go.
  • At 4 inches thick and an equivalent R-Value of 5.2 The Comfort Plus Mat is ideal for comfort-oriented three-season campers.
  • Luxurious 30D knitted polyester fabric is soft and warm to the touch.
  • Weighs: 2542g (excluding bag)
  • Size: Long Wide
  • Length: 201cm
  • Width: 76cm
  • Height/Depth: 10cm
  • Packed size: 20.5 x 76cm
  • ASTM R-Value: 6.5

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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