The Nappy Bag Sleep sack is best snuggle blanket ever. It's an all in one sleeping sack and pillow with carrying straps to make it easy to take to a sleepover at Grandma's house. It is lined with Cuddle 3 so that makes it so soft and so washable. The bag easily folds into thirds and then folds into a pocket in the pillow to make a back pack/pillow. Perfect for taking to daycare, watching a movie or just playing on the floor.