Warm and Snug! Pink Bubble Baby Sack helps babies sleep better and safer. It replaces loose blankets in the crib that could be kicked off, or cover the face and interfere with breathing. Made of amazing Pink Bubble fabric, and delicate pink picot trim detail. Just like most things, the quality of cotton can vary greatly. The true secret behind softness and quality comes from the northern coastal valleys of Peru, known as Peruvian Pima Cotton. The properties of this fiber create for a more durable fabric, that gives it its unparalleled luxurious touch that is most desired. Full snap opening for easy dressing. Short sleeves. Machine washable.