My LO has basically never slept in his crib for more than 20 minutes. There were a few exceptions, but now he wakes up after 5 minutes in the crib. He is almost 6 months, and I'm wondering if it's even a realistic expectation at this point. I am not interested in CIO-type methods, I'm just curious to know if other people have had a similar experience. We only get good naps if he is in my lap. If he's sleeping alone, he wakes up and never gets deep sleep.