SNOO, in conjunction with SNOO Sack, is the first and only bassinet that keeps sleeping babies safely on their backs. It’s this innovation that earned SNOO FDA De Novo Approval. Back-sleeping is the number one safe-sleep recommendation by all public health authorities in the United States, including the American Academy of Pediatrics and the Centers for Disease Control and Prevention. In addition, SNOO features mesh sidewalls that allow air to flow in and out with ease. SNOO Sack is hip-safe and made of breathable organic cotton helping to keep little ones cool and comfy during sleep.