Used the older XLite for years until it developed an untraceable leak, and Therm-a-Rest replaced it with the NXT under warranty. The thicker NXT gave them serious back pain, so they switched to a Sea to Summit pad they find more comfortable.
“Therm-a-rest replaced it with the new NXT (great customer service). But, there's something about the NXT that just doesn't agree with me. Gave me serious back pain. I think I like a thinner pad.”