first off I love Halo , they make a great product and I have use they sleepsack ever since my daughter be little . now at almost 2 I want to try the toddler version . we call they she cozy and she love wear they . this one in particular since she be gaga about cupcake . she stay warm all night and I do not have to worry about a blanket , love love love ! just a size note , we buy the XL size and my daughter be a average size 20 month old . when people say these run big they mean it !!