Comfortable, self-inflating twin camping mattress for those looking to basecamp in luxury. The Sea to Summit Comfort Deluxe Self Inflating Mat delivers a hard-wearing, super comfortable construction in an oversize design for the camper and tourer looking to add a little more luxury to their outdoor adventure. For epic cushioning the Comfort Deluxe SI Double airbed utilises a 10cm thick Delta Core technology. This innovative construction maximises comfort and thickness while minimising weight and bulk. Triangular foam cores deliver stability and support with thicker PU foam on top to aid insulation and ensure consistent warmth along the entire length of the pad.The self-inflating design simple to use - simply open the valve and leave to stand before topping up with a few breaths to the desired firmness. An anti-slip print on the top and the base of this mat helps hold your sleeping bag and mat in place. Also includes the new Pillow Lock system allowing you to secure compatible STS pillows for a slip-free sleep pillow sold separately. Includes repair kit for quick fixes on the go.The valves multi-functional design features a high flow-rate, allowing easy inflation and one-way deflation making it easier to roll up without it re-inflating. An R-Value of 6.5 means this camping mat ideal for 3 season use dipping into winter hut trips with a supporting sleeping bag. With its unbeatable plushness and durable self-inflating design, the Comfort Plus SI Double air mattress from Sea to Summit delivers a fantastic two-person sleeping pad for base camp, multi-day camping trips, festivals and even home use for sleep-overs. A great sleeping pad for kitting out campervans and smaller tourers.