Hudson Baby long-sleeve jersey cotton wearable blanket is the perfect safe sleep option for your little one. Our long-sleeve wearable blanket is made with a lightweight cotton fabric that will keep your little one warm and cozy. Our wearable blanket features a zipper closure with multiple zipper protectors for maximum safety. Hudson Baby Infant Boy Long Sleeve Cotton Jersey Sleeping Bag, Blue Whale is the perfect addition to your little one's nursery. Our sleep sacks, wearable blankets and sleeping bags are always intended to be worn over children's sleepwear.