John D.wrote a review of Therm-a-Rest NeoAir XTherm Sleeping Pad on July 17, 2019
Familiarity: I've used it once or twice and have initial impressions
My trip required an easy to pack, lightweight, insulating, and dependable sleeping pad. Six days into the trip, this useless item developed a leak. I used this pad with a foam pad and inside my mummy bag.It shouldn't have failed. Between17,000 to 24,000, I didn't have adequate insulation from the ground cold.