I have three seasons in with my short edition NeoAir. Biggest trick is not overinflating it--it requires less air than a traditional mattress with lengthwise tubes, or a self-inflator.

Every time I pack the tiny thing, I crack up at how little pack space it requires.

I've used it down to the low-20s so far and have been fine. With all that said, mattress comfort and temperature range are a very personal thing. If you sleep cold, I'd look at the new 4-season NeoAir.

Cheers,
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--Rick