The baby deedee Sleep Nest will make a great addition to your baby's bedtime & napping routine. This duvet sleeping bag has shoulder snaps and an oversized zipper which makes it easy to place baby in and out of the sleep nest. Patented design exclusive to baby deedee sleeping bags. Product warmth: Our sleep sacks for infants and toddlers are lightly quilted and have a TOG rating of 2.5. They are intended to be worn over regular sleepwear. Recommended room temperature is 67-74°F.