A very good sleeping pad. Please follow the instructions regarding storing it inflated. Makes it inflate faster when you are in the woods. I put 6 self stick gum rubber pads on mine to stop sleeping bag from sliding. they are the rubber bumbers used for kitchen cabinets,2 bucksfor a pack of ten or twenty. packs up small and if you use a stuff sack - theirs or any other your pill should fit in it too. I have 3 Prolite 3's for my kids/wife I have the prolite 4 but then again I am over 6 foot and weigh 250. but all of above applies to both.