text: My 2 year old loves this! He sleeps in a large. We love that he can't kick it off him at night and it's very comfortable for him. We used to use the Halo fleece sleepers but I came across these and made the switch. We live up north and have very cold winters, we keep our house at about 70° at night and he's does great in this sleeper. This keeps him warmer than the fleece and he LOVES getting into it at night! Super soft & cozy, only wish I found it sooner! Planning to get one for our 8 months old as well. Too bad they don't make adult sizes! ;) Worth every penny!