The Cocoon Cotton TravelSheet Coupler is an innovative, versatile sleep sack that can be used in different ways, depending on your needs. Zip it up to make a cozy travel sheet for one person, or zip it to another Coupler or to a Cocoon FleeceBlanket or Cocoon OutdoorBlanket to create a sleep system for two. May be used as a lightweight sleeping bag in warm weather. Comfortable TravelSheet for one person. Unzips to a sheet for two. Zips together with another TravelSheet Coupler, a Cocoon Tropic Traveler, Cocoon Outdoor BlanketSleeping Bag or Cocoon Fleece BlanketSleeping Bag to make a sleeping bag for two. Pillow pocket. Two way 5 YKK zipper. Completely double stitched. Machine washable. Colorfast cotton. Size: 86x33. Wt. 17 oz.