Prince Lionheart Original Slumber Bear; has an authentic womb sounds that have been helping millions of newborns sleep in maternity hospitals and homes worldwide. Slumber bear's authentic womb sounds are effective in lulling babies to sleep. The sound box has a 5 minute auto-shut off timer and a sound and motion sensor that reacts when baby cries. Each Slumber Bear Plus arrives with its own Silkie! You can bond with your baby by keeping a Silkie close to your skin, transferring your scent to the blanket. So even when Mum and Dad cannot be with their baby, their scent remains to reassure and comfort. And, babies loves the soft and smooth Silkie texture that provides beneficial tactile stimulation!