I had a sleepy wrap as well as few different carriers, and I love the sleepy wrap best. It can be worn a few different ways, and even I could do it from the book! Like the hug a bub, it does get a bit hot on warm days, but I also then bought some lighter fabric and made one the same shape for summer time. I couldn't use a ring-sling, as it was too one-sided and hurt my neck.