**DaysU 100% Cotton Baby Wearable Blanket - Soft Sleeveless Sleep Sack with Zipper for Boys & Girls - Perfect for Safe & Cozy Nursery Sleep**

Love these sleep sacks! I prefer to use these for my baby boy over the Halo and other sleep sacks we have for him. He is a tummy sleeper and the zipper on these ones don't bother him. He is 7 months old and I got the Medium, which has tons of leg room. They will last him quite a while!The fabric is high quality and soft, definitely a great value for the price! It's light but not too thin. The fabric zipper cover functions as it should, and I like that it is not right up under my baby's chin.I do want to warn others, I have bought 3 different sets of these and had to return one. The Dinosaur, Bear, and Sheep versions are NOT 2-way zip! Not sure why that is, and why the listing isn't more clear about this, but if you look at the pictures you can see there are not 2 zippers. We have the Bee and the Fox versions, they're just so cute! If they update the Dinosaur one with a 2-way zipper I would buy it in a heartbeat.