Transitioning from rock n play to crib

Virginia
So I've noticed how my son has switched from sleeping on his tummy on my chest to laying on his back most comfortably. He just cant be comfy on my chest anymore not unless he is dead tired. I think it is his way of telling me that he is ready for his crib. So any advice for his transition from Rock n play to crib? Btw he hates swaddling and blankets.