Thermarest NeoAir XTherm
This is a fantastic mat if you want lightweight, small packed size, and WARM. It packs into the size of a 1L water bottle yet has an R-value of 5.7 - enough for winter camping - and is comfortable to boot. Reflective baffling inside the mattress creates pockets of air that trap heat and keep the mat stable. You can inflate it by mouth; however to keep moisture to a minimum inside it's a good idea to purchase a Pump Sack, Torrent Pump or Mini Pump. Comes with stuff sack and repair kit.
|Packed dimensions||23 x 10cm||28 x 11cm|