Stephen Joseph Butterfly Nap Mat Roll This adorable Stephen Joseph butterfly nap mat is generously sized at 52 1/2 in. x 24 3/4 in. (not including the pillow head) and rolls up easily for carrying with an adjustable strap on the back. The blanket measures 24 3/4 in. x 41 in. and the pillow is 9 1/2 in. x 11 1/2 in. Best of all, it's machine washable! The nap mat carries like a backpack. Made from Velboa, a low pile faux fur fabric that is extremely soft! Removable pillow. We personalize this nap mat with her first name embroidered on the attached blanket This nap mat is so soft and cuddly. It has a comfortable map to sleep on, attached blanket, pillow stuffed head, rolls up, and backpack straps. Your preschool child will love cuddling up for nap time with this little guy.