I'm not sure what to do!! I feed him, change him, then rock him to sleep, I make sure he's good and asleep (rocking 20 min or so) and put him in his bed. He stays in there just fine for about 30-40 minutes then is screaming again! I take him out and lay him in bed with us on his back, still cries, on his side he will go right to sleep for 3-4 hours! I'm not sure what I can do to help him sleep in his bed..

Side note: it's the same during the day, he likes to sleep on his belly!