Snoozy the Sloth is a plush toy with a respiratory system. He sleeps while clinging onto a user, allowing them to feel both the contraction and expansion of his chest, as well exhaling of air from his mouth. The main concept behind snoozy is to create an intimate, yet passive, toy interaction that relaxes and comforts a user, through the tactile experience of steady breathing patterns.

More info here: blog.justinblinder.com/2009/05/snoozy-the-sloth/