Nanit Breathing Wear works exclusively with the Nanit Plus nursery camera to monitor your baby's breathing motion without putting sensors on them. The specific patterns on the fabric were custom-designed to be read by the HD Nanit camera, making it easy to check in on your little one from your Nanit app. It features one large Breathing Band made with 100% cotton. Designed to go around baby's chest and abdomen, the elongated binding allows you to adjust the size as baby grows. It's super cosy and can be worn over most pyjamas, with soft edge binding that means baby can't grab hold of anything. The secure, quiet-open hook and loop attachments ensure a perfect fit. Product Features 100% cotton breathing band to comfortably track your baby's breathing motion No electronics or sensors in the product, on your baby, or in the crib Designed specifically to go around the chest and abdomen Soft edge binding means nothing sticks out for the baby to grab onto Elongated binding allows for variability in baby's chest circumference Secure, quiet-open hook and loop attachments for the perfect fit Can be worn over most pyjamas