catastrophic failure proof
i've sworn off inflatables after my third ruined trip with those things. finaly i bought the heavy duty version. then going into week 3 at yosemite in jan. the thing developed a huge foot high 2ft. dia. blister near my legs so i couldn't sleep and went home. when i brought it back to the store [not backcountry] the guy asked what was wrong so i blew it up and he bout freaked and stuffed it behind the counter before too many customers would see. ha haaa!