My little boy was same he’s 11 months nearly 12 and I co sleep two iv notice if u try keep him up at night for as long as possible that helps a lot my little boy gose to bed around 9-10 wakes up about 2-3 stays up playing till about 5-6 then he’s asleep again and wakes up for the day at about 12-13.00
It varies but yeah anywhere between 3-5 wake ups a night and we have also coslept since day 1