Product content: Waffle pique, Patterned poplin fabric and Plain Fiber Product Dimension: 100*100cm WASHING INSTRUCTIONS Machine washable at 30°c. Do not dry in the dryer. Do not use bleach. Why are babies swaddled? A newborn baby grows warm (36.6 degrees) and tight in the womb for 9 months. She feels very comfortable there, has everything she needs and feels safe. Birth is a big shock for her. The world creates a new environment for him. In his eyes, the world is a noisy, cold, big and unknown place. It will take some time until your little baby gets used to the new reality, and the swaddle will help him with this. It will remind him of the feelings he has been accustomed to for months. Swaddle warms and wraps the baby and literally replaces the mother's womb.