Sea to Summit Ether Light XT Extreme R Inflatable Mat,Black (Black)

Amazon

Extra-thick and extra-warm 4-inch air mattress provides a plush, insulated sleeping experience for winter (6.2 R-Value) camping and backpacking Single-layer Air Sprung Cell construction mimics a spring mattress, using fully-insulated flexible loops for warmth and comfort Multi-function valve for fast inflation in just a few breaths (using integrated Airstream Pumpsack), one-way deflation for quick packup, and fine-tuning of air pressure Insulated pad features high-loft fiberfill and reflective fabric, to prevent heat loss and radiate heat back during sleep; non-slip 30D/40D nylon face fabric is durable and quiet

Snowcountry

Fully insulated, extra thick air pockets are created by using many TPU loops that connect the top and bottom fabric layers with Sea to Summit's Air Sprung Cell™ dot weld pattern. By filling the Ether Light XT Extreme mat with dual density layers of THERMOLITE®, Sea to Summit created a line of lightweight mattresses that can be used in the most extreme conditions. Thanks to its lightweight construction, you won't break your back carrying it around.