Halo SleepSack Wearable Blanket Micro-Fleece Applique - Lime GiraffeThe HALO® SleepSack® wearable blanket replaces loose blankets in the crib for a safer night"s sleep. Reduces the risk of rebreathing (inhalation of carbon dioxide), a suspected cause of SIDS, and suffocation. Keeps baby warm and covered all night long. Wear over regular pajamas. Inverted zipper for easy diaper changing. Beautifully crafted appliqué on bottom of SleepSack. "Back is best" message reminds caregivers to put baby on their back to sleep. The HALO® SleepSack® is recommended by leading SIDS and safety organizations worldwide, and is used in over 400 hospitals in the U.S. A portion of every sale is contributed to First Candle/SIDS Alliance. 100% polyester microfleece. Small fits 10-18 lbs; medium fits 16-24 lbs; large fits 22-28 lbs.