Mouse awsome reply! Cant put a price on sleep. I have avoided the neoair and have a full length prolight. When temps dipped in the smokies to below 12 degrees I could feel when my feet slipped off the pad. The cold penitrated. If my prolight punctures I still have a bit of pad and insulation. I now have a G4 that I made from akit, 2 pound down bag from rei, aluminum grease kettle from wally world. water filter, sil tent I made, pack cover first aidkit a 2.3 oz colomon extreame canister stove that works and simmers awsome. Base weight at 12 pounds flat les water. I may have forgot a few items too such as head lamp.