Cry it out help.

So my son is 8 1/2 months old. We want him to start sleeping in his crib at night and for naps. We currently let him cry it out during the day, but haven’t been successful at night. We live in an apartment so we don’t want to disturb our neighbors too much.

He also doesn’t sleep through the night. At all. He goes to bed between 7pm and 9pm, wakes up 2-4 times during the night to eat, and is up by 5:30am. I’m exhausted.

So any tips I can get on getting him to successfully sleep in his crib and to help him sleep longer would be greatly appreciated!