Hammock Bliss Sleep Sack is your portable lightweight sleeping solution in a bag.The Sleep Sack can be used as either sleeping bag liner or in warmer weather as a sleeping bag alternative. The Sleep Sack is a great sleeping solution for hammocks, camping, hotels and youth hostels. The Sleep Sack is make from super soft and breathable nylon parachute silk and is 75 inches long x 38 inches wide. It features a large section pocket at the top of the sleep sack for pillow insert. The Sleep Sack is very compact - it fits into an 7 x 5 inch travel bag. The travel bag is attached to the sleep sack so it is impossible to lose. At only 11 oz, the sleep sack is incredibly lightweight and it is washable and dryable in the machine. The more you wash it the softer it gets. Take the Sleep Sack where ever you go - your dreams will be blissfully sweet.