what do your lo's sleep in?

Leah.
We went from swaddling to the Baby Merlin sleepsuit; which worked great for us. But now he's learned to turn over in the sleep suit so i have to figure something else out!! He was finally sleeping somewhat comfortably. He is an EXTREMELY FIDGETY baby and I really don't know what to do. I just ordered a sleep sack but I don't think that's going to make much of a difference. I've tried belly sleeping but he thinks it's play time and won't fall asleep. Any suggestions would be great!