World"s first pure merino newborn baby sleep sack for safer sleep. * 100% natural allergy-safe New Zealand merino wool; lightweight, comfortably warm, luxuriously soft. * Absorbs and releases moisture to warm or cool your baby"s body, regulating their body temperature. * Patented safety belt aperture makes it easy to transfer baby between crib, stroller and car seat. * For newborn babies up to 3 months. 2009 iF Product Design Awards Seal of Outstanding Design.