Rick Vizcara wrote an answer about Therm-a-Rest NeoAir Trekker Sleeping Pad on May 13, 2013
For Lady London... I am glad your so excited that your pad packs down so small and that its light. But you did nothing in your answer to help the person asking the question should she go with the All Season version vs this cheaper version. Jdwrz I would go with the all season to be sure as your probably at your age "Nothing wrong with it" be more comfortable and warmer being a woman on the all season. At your age its pays to be comfortable by just paying the couple of extra bucks for the all season. A sleeping bag and seriously a sleeping pad is by far the last place to skimp on money. It is awful tossing and turning all night cold or because of a lumpy hard ground hurting your back or hips. To me its far better to invest in a good pad for a good nights sleep. I am a big guy or stocky like a bulldog and I like to side sleep and this pad really can take my side sleeping and deliver a good nights sleep. As for the cold I am a guy and hot potato by most standards but will only use this pad to say 30 degrees with a 15 degree bag. Any lower than that I need to put a z-rest foam pad ontop of it to keep warm enough. So for you I would say this pad would take you to 40 degrees at its lowest and with a 15 or 20 degree bag for you to be toasty and comfortable. any lower than that get the All Season.