HALO Sleepsack Micro-Fleece Wearable Blanket, TOG 1.0, Grey, Small

The original wearable blanket replaces loose blankets in the crib for a safer environment; the #1 choice of hospital nurseries to promote safe sleep
Made from a super-soft polyester micro-fleece fabric with a TOG rating of 1.0, just the right comfort for moderate seasons or climates; can be layered with warmer sleepwear for cooler temperatures; plush inside and out and wicks away moisture
Unique, roomy sack design recognized by the International Hip Dysplasia Institute as "hip healthy" - allows room for kicking but cannot be kicked off, so Baby stays warm and safe all night
Inverted zipper opens from the bottom for easy diaper changes; sleeveless to reduce the risk of overheating; arm and neck openings sized for a safer fit
Available here in Small size designed for babies weighing between 10 and 18 pounds who are generally 0-6 months old and 23-26 inches long