Topic

Avoid this NeoAir mattress mistake

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PostedJul 23, 2009 at 12:02 pm

I left my inflated Thermarest NeoAir Regular in my tent (Tarptent Contrail) for a short dayhike. When I came back, the heat (up to 100 degrees) from the sun on the tent had expanded the air in the mattress and popped 4 or 5 baffles, causing a basketball-sized goiter-like inflation in the middle of my mattress.

Wouldn't have been so bad if it had been on the end of the mattress (a pillow! or footrest!) or not on the very 1st day of 4 days out!

So – If you're gonna leave your NeoAir in your tent in the sun, open the valve and let a bunch of air out first!

Never had a problem with thicker ThermaRests, but I've probably just been lucky..

Jim MacDiarmid BPL Member
PostedJul 23, 2009 at 12:07 pm

I thought about this last weekend when I was hiking in hot weather. I had inflated my NeoAir all the way, then thought better and let some air out.

I had a demonstration of the 'hot air expands' principle last year car camping with my girlfriend. We brought an airmattress, and since the battery for the pump was dead, we half-inflated it as home, knowing we didn't want to fully inflate it using lung power at camp. Stuck in the back seat half-inflated for 3 hours in the sun, it grew and grew till we actually had to let some air out.

Lori P BPL Member
PostedJul 23, 2009 at 12:45 pm

It's right there on the instruction sheet to let some air out if you leave it inflated during the day….

Makes perfect sense to me. I probably wouldn't have thought of it without reading the instructions, but it makes sense.

Anthony Weston BPL Member
PostedJul 23, 2009 at 12:51 pm

Thank you Larry for posting this. You may have saved several neoair's from a similiar fate.

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