My son doesn’t like being swaddled, so we were looking for the perfect transition from the Halo Swaddles. I like that it’s light weight and will last him into the warmer months. We live in cooler weather, so for now in the winter months we usually pair it with his fleece jammies. I like that it zips from the top down, that makes for easier changes in the middle of the night without having to take it completely off. I do have to say that I am disappointed with the zipper, I’m sure it’s not on every sleep sac, but ours is broken. I fixed it to work, but there are so many times that the zipper still gets “off track”. That’s annoying to fix when you have a sleeping baby that you want to stay asleep. I tried finding a way to reach out to the distributor to let them know about the faulty zipper, but was unable to find a contact. Because of the zipper, I’m giving it 4 stars.