Ships from Hong Kong. Your baby's favorite pajamas, this muslin wearable blanket does away with loose blankets in the crib-creating a safe sleep for baby and peaceful night for you. Easy to put on or take off. it is the best baby sleep sack. Ultra-soft cotton muslin, it is exceptionally breathable for optimal airflow, reducing your baby's risk of overheating and ensuring comfortable sleep. Unzips from the bottom for easy diaper changes.