Insulated with water-resistant down (called DriDown ... is best for camping as opposed to backpacking. [HiHiker Camping Sleeping Bag + Travel Pillow w/Compact Compression Sack: $49.95 or less.

Off on a summer camping adventure ... despite its light weight thanks to its filling of water-resistant animal down. We tested the bag on a warm spring night and found it trapped in heat quickly ...