The Hudson Baby Unisex Baby Cotton Long-Sleeve Wearable Sleeping Bag is designed for infants aged 0-3 months. This sleep sack features long sleeves with mitted cuffs to keep your baby warm and cozy while preventing accidental scratches. Made from 100% cotton, it is soft and gentle on your baby's skin, making it optimal for everyday use. The sleep sack replaces loose blankets in the crib, ensuring your little one stays cozy, warm, and secure throughout the night. It is machine washable for easy care.