Ive tried everything to get my 22 month old to sleep though the night. The cry it out, answer when he cries and give him a sippy cup of milk, hold him and rock him back to sleep and lay in his room, he has also slept with me so I can get some sleep. Everytime I let him cry it out whether its just getting ready to goto sleep or in the middle of the night he will throw up! He was sleeping though the ight around 5 months an then around 11 months something hit him and now the crib just makes him throw up! HELP please I need some sleep!!