My son used to be a great sleeper. We would put him to bed at the same time every night and he would fall right asleep and not wake up at all until morning. A month ago I went home to my parent's house with him and he refused to sleep in the crib. He would only sleep in bed with me. We got back from the trip and after a few nights in his own crib he was back to sleeping normally. This only lasted for two weeks though. Sunday night he woke up crying every 2-3 hours and had to be rocked back to sleep. Sometimes he could be put back into the crib after falling asleep, and other times he would wake up and scream so he would need to be rocked back to sleep all over again. Either way he only slept a few hours each time until waking. We thought it would pass but we've just been through night #4 like this. The problem is that he stands up and throws his security blanket that he needs to sleep with out of the crib so that he won't ever fall asleep on his own if we just let him cry. Will he eventually go back to normal since he already knows how to sleep through the night or do I need to do something to help? I'm really miserable when I can't get any sleep.