I was using waterproof sheets layered on top of each other because I was buying with the intention of recycling. I didn't even use it for a week because my baby rolls around a lot and has a preferred sleeping position, so I ended up starting helmet therapy. Please understand that this item has been in someone else's possession once. Product Name: Tenshi no Nemuri (Angel's Sleep) Manufacturer: Balance Body Research Institute Size: Width 80 x Depth 45 x Height 14cm Included: Main body, support cushion, inner cover, outer cover Weight: Approximately 730g Made in Japan Purchase Price: 15,998 yen (tax included)