JOHN: 1. Everything with moisture will freeze. anything you do not want to freeze needs to be in the sleeping bag with you. 2. Put a hat,mittens,and socks in a plastic bag that you do not intend to use unless there is an emergancy (this can be heaven if you are cold) 3. once you use "Thermarest" style pad you will never go back to ensolite. 4. Take two old sweaters sew the trunk of one to the other make a super long garment for complete coverage. 5. Consume 6,000 calories a day, eat lunch all day "gorp" 6. you are better off at 20 degrees than 40 degrees stay dry. 7. remember - 32 degrees keeps out the riff raff enjoy your next winter camping. GEO.F.