Sleeping in a rock n play

Caroline • Caroline Renee Photography

My boy is 10 weeks old. He sleeps in his rock n play at night and I've had him napping in his crib. He only naps for 30 min but seems fine with his crib. I thought I could transition to the crib and the night I tried I didn't get a single minute of sleep. Advice.... how to transition. I will not do the cry it out method!!! How long can I actually let him sleep in the rock n play