The Baby Merlin's Magic Dream Sack Sleep Sack in Blue is a wearable blanket designed for babies aged 6-12 months, weighing 16-24 lbs. Made of soft cotton material, this unisex sleep sack is perfect for keeping your little one cozy and snug in their crib. With a simple design and no personalization options, this Baby Merlin's product is a practical and safe choice for your baby's bedtime routine.