Give yourself a good night's sleep with Therm-a-Rest's NeoLoft Mat. This is a supremely comfortable and surprisingly portable inflatable sleep-mat that packs down to not much larger than a 1L bottle. The secret sauce seems to be that ContourCore Matrix™ technology, which provides serious comfort and support without the weight. Add in high sidewalls to keep you in place, along with a super-silky stretchknit fabric and a high-volume pump sack and you've got what might just be the most comfortable backpacking mat around.