Transitioning 10mo to own bed

Kecia
I have a 10mo little boy. He was exclusively breast  fed til he was 6 months old, which is why I started cosleeping with him. I switched him to formula at 6 months, but never really cared to move him to his own bed til now. We're expecting our second baby boy in Aug '17 and it's time for little man to sleep in his own bed. I have no idea how to switch him, though, because he wakes up at least two or three times in the night for a bottle. He naps in his own crib during the day for 1-2 hours, but when I put him in at night he wakes up after 30-45 mins and won't go back to sleep til he's with us.