knafelc wrote on Oct 31^st, 2012 at 12:55am:

thanks for the imput. How do the NeoAir and the Trek+Travel by Therm-A-Rest differ? Seems like the Trek+Travel model may consist of more foam,since (according to my Campmor catalog) the NeoAir rolls up tighter and is lighter. My trips are usually in May. I wonder if the much pricier pad( NeoAir )provides as much insulation. The 40th anniversaary model is interesting,too.  It seams that the Big Ag is loved by many,but a smaller pack size is pretty attractive. I'll  have to look on line to see what the last suggestion is like.    thanks.

Check out Therm-a-rest website for "R" values. The Neo Air is mostly just air??, the Trek/Travel is more a solid foam core and more square footprint. The Pro-light & 40th anv. models have a foam core with holes punched into it to save weight, pack smaller, and a mummy footprint.

Also you can call Campmor and ask to talk to someone "on the floor" that has the different produces in front of them while they answer your questions. I did that with REI, but was left with some wrong impressions. So good luck.

Insulation might be a bigger deal for those with Big Agnes bags since they don't insulate the bottom of the bags.