20% under what the other stores charge
Compared across 14 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Sea to Summit Comfort Deluxe SI is a self-inflating double sleeping mat built for two, with a 4-inch foam core and an R-value of 6.5 for cold-weather camping. Its Delta Core construction removes foam in a pattern that cuts weight and bulk while keeping the pad warm and supportive. The 30D stretch-knit top is soft against skin, and the one-way valve lets it self-inflate and then top up by breath. It suits couples and car campers who want warmth and comfort over light weight; at 4.3 lb it is a base-camp pad, not a backpacking one, and rivals like the Exped MegaMat Duo trade similar bulk for similar comfort.
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Lowest price we've seen: $161.85 on Nov 14 at Appalachian Outfitters; highest $265.00 on Nov 6. Tracked across 13 stores since Nov 6.
Owners of Sea to Summit's self-inflating mats generally praise the warmth and the thick, stable foam, and couples like the double size. The main complaints are weight and packed bulk, which come with the foam construction.
The Comfort Deluxe SI is a self-inflating sleeping mat with a thick foam core. It is insulated, with an R-value of 6.5, and the foam construction holds heat well.
Inside, Delta Core technology (Delta Coring) shapes the foam. The top is a soft 30D stretch knit polyester, and the bottom is 75D polyester. The mat is rectangular and 4 inches thick.
It inflates on its own through a one-way valve. No pump sack is included. A repair kit and a stuff sack come with it.
