This reliable, self-inflating sleep mat is built with an insulating X-Core™ foam filling to give you a comfortable night’s rest. Perfect for regular camping and overnight adventures. If you’re looking for comfort, durability and ease of use, our self-inflating Exosphere 3.5 sleep mat is ideal. Its X-Core™ foam filling is supportive and insulating, ensuring you get a rejuvenating night ready for tomorrow’s adventures. This foam uses X-core technology which is a 3 dimensional weight relieved structure. This saves weight and reduces pack size, but also traps air to boost warmth and contributes towards the mats R-value of 3.4, while the rectangular shape supports a range of sleeping positions. The low-profile two-way valve allows for rapid inflation when the weather is threatening, and easy deflation when you’re ready to roll the mat away into its stuff sack. Made from recycled polyester with a fluorocarbon-free DWR, the Exosphere 3.5’s outer fabric is hardwearing yet with a comfortable next-to-skin feel. This versatile and dependable sleep mat is ideal for a variety of uses, and is the perfect place for you to recharge and make tomorrow count. Features: Self-inflating X-Core™ system is quick and easy to use X-Core™ Foam Technology with weight saving honeycomb construction boosts warmth, support and comfort Hybrid rectangular shape allows various comfortable sleeping positions Low profile two-way valve for easy inflation and deflation Roll-away stuff sack with repair kit included Fluorocarbon-Free Product Exosphere 3.5 Self Inflating Sleeping Mat (665g) - Regular