4 month sleep regression

Well the sleep regression has hit us and I'm exhausted.. my lo usually is passed out halfway through his bedtime bottle usually around 830. I put him in his crib and typically he would sleep till 4 eat and then go back down till 630 7. For the last 3 nights I put him in his crib and he is soo restless, he moves all over. He wakes up every 2 1/2 - 3 hours.. but the last 3 days he has had a 2 hour plus nap in the afternoon.. is there anything I could be doing to help him sleep better at night? Thanks in advance