Duplicate your at-home sleep experience in the outdoors -- sleep together! MegaSleep Duo is a supremely versatile 4-in-1 sleep solution, offering multiple configurations and temperature ratings. It covers couples and solo sleeping with warm and cool night options. Simply flip the bag over to change the amount of insulation on the top side -- dark blue side up for cool nights (down to 25F) light blue side up for warm nights (down to 40F). Also, each side can be converted into a solo bag or blanket, creating one for cool nights and one for warm nights. Designed to fit EXPED MegaMat and MegaMat Duo, MegaSleep Duo is the lightest and most compact two-person sleeping bag in its class. It was designed specifically for use as an overlanding and car-camping bag. However, because it weighs just 4 lbs. and compresses amazingly well, it can also be used for human-powered adventures such as backpacking, kayaking, canoeing, etc. Key features: full-length draft tube along the zipper to stop heat loss and enhance warmth. Durable, quick-drying microfiber insulation for resilient, long-lasting performance. A central snap at the head end reduces drafts caused by an active sleep partner. All next-to-skin fabrics are treatment-free, minimizing skin contact with allergens or chemicals. Includes a convenient adventure-ready storage duffle bag.