My 12 Month Baby Sleep late in night week up early

My little boy goes to bed at around 7 each night with a 9oz bottle and wakes up anytime after 8 most days now he doesnt have a nap during the so that makes him sleep in longer in the mornings. maybe you could try cutting the lenth of her after noon sleep or changing it to a bit earlier in the day, as i have found if the afternoon nap is too late my little boy doesnt want to go to bed at normal time, hope this helps