I have tried on a few different occasions to put Ryan to sleep in his crib. The longest I lasted was 5 days in a row. He is 4 1/2 months and I decided to try again. This is night #2. He took a bath at 6:45, ate after his bath, fell asleep while nursing, woke up for a few minutes, and I put him in his crib. I turned the monitor on and came in my room. 10 minutes later I still hadn't heard him, only the mobile. I checked on him and he was sound asleep before 8pm. Last night he slept from 8pm-6:45am. He's getting too big too fast.