This is a set of belts and covers to prevent babies from sleeping on their stomachs. It easily attaches to mattresses and futons with a circumference of 170cm or less with Velcro, providing a sense of security for the baby like a swaddle. Supports sleeping on the back and side. It folds up compactly, so you can take it with you when you go home or travel. The simple design, designed in the Netherlands, won't interfere with your interior decor. 【Target Age】Newborn to 9 months 【Material】Main body: 100% cotton, Velcro: Nylon 【Size】Mattress cover: 47cm long x 180cm wide Swaddle belt: 53cm long x 67cm wide 【Weight】Mattress cover: 230g Swaddle belt: 70g 【Notes/Precautions】 ・Please wash it once before using it for the first time. ・To avoid suffocation by the mattress cover, make sure to wrap it tightly around the mattress so there is no slack. ・After the swaddle belt is wrapped, make sure there is enough space to insert your palm around the baby's torso. ・Discontinue use if your child can remove the Velcro. ・Discontinue use if the Velcro becomes severely damaged and can no longer be securely fastened. - Brand: Snoozzz - Product Name: Sleepwrap - Size: Regular If you choose to have it shipped without the box, we will offer a 500 yen discount, so please purchase after commenting. Thank you for viewing.