My son was up every couple hours until he was a year old. A week after his first birthday he slept through the night. But even now he still wakes at night sometimes.

My ten month old is still up twice my almost three year old still get up from time to time! Depends really. Every kid is different.

My son was 11 months, but had to do some sleep training. He was in my room until 11 months

Mine did until 15 months. My oldest slept through the night at 3 months. Depends on the baby!