my 9 month old refuses to sleep in his crib. we co slept with him but it's time to go to the crib ! we've tried using a soothing machine, rocking him to sleep and then laying him in the crib. we put him in comfortable clothes room set at 73 we use a humidifier. we even tried putting the crib next to our bed and he wakes up every time screaming and crying. I didn't like this but we decided to let him cry it out. ( which he screamed on top of his lungs for at least 20 mins I couldn't let him do it any more) so I'm running out of options ps this has been going on for 2 months he still won't sleep in the crib and this mama is TIRED please tell me someone has advice