Bought one of their REI self inflating mattresses about 9 months ago! Its flat, or won't hold me anymore and water/soap test reveals about 100+ holes, as if the fabric itself is failing. Its been VERY comfy to sleep on. REI stood up and as a REI member(ME), they are giving me another or money back, my choice. I have no receipt, but membership "rules" and its FREE to join as I did years ago. I will go get another (same)mattress, soon. I've not had better rest on any mattress. Randy