I just got an awsome BA lost ranger and to complete the system I would like to get a pad to insert in this when I go to ground. I have several cubscout events over the next year and a half where I will be indoors sleeping. If I am buying it I would think I want something insulated. Rei has several discounted ones on there site, but I am not sure what is different about those versions. The bag is a long, but I would not NEED the pad to be but it would probably help. They have a long called sand mountain for $58 can I do better?