Thermarest NeoAir XTherm

Thermarest's updated version of their lightweight, warm XTherm mat. It packs into the size of a 1L water bottle yet has an increased R-value of 6.9 - 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.  It inflates more easily now with the new WingLock valve for easier and quicker inflation/deflation. The wings of the valve toggle for one-way inflation so you don't hyperventilate while setting up your mattress. Comes with pump sack, stuff sack and repair kit.