The best air mattress on the market right now is the NeoAir made by Cascade Designs Therm-a-Rest.
I was lying on mine one night in the tent during an 8-day hike of the Haute Route in the Alps. A strange sizzling sound began.
At first I thought I was being attacked by insects under the tent.
Then my NeoAir began to swell in one small spot.
Each night after being inflated the swelling increased in size. It seemed to stop when internal pressure reached a specific point. (under-inflated)
weird bulge on an air mattress
I slept on the thing anyway though, being a savvy hiker, I was actually carrying a second small air mattress, using it as a pack frame and pillow.
I’m BRILLIANT to have a back-up. Right?
Sadly, my “pillow” had developed a slow leak. It was worse than the NeoAir.
The NeoAir is not widely available in Europe as yet. By luck I happened to find a demo model in Chamonix, France reduced to 109 Euro (US$156).
I’ll be returning the damaged NeoAir on warranty when I get home.
But I’m wondering if this was a fluke. Or a design flaw in a new product. Leave a comment if you’ve heard of this happening to any other NeoAir mattresses.
I’ll post it to Twitter tagged #NeoAirFail, as well.
Cascade Designs Therm-a-Rest – official NeoAir webpage
UPDATE: I’ve only heard of one other incidence of this happening. My NeoAir was replaced under warranty.