Help! My 22 mo old wakes every two hours at night, out of habit - I think. I need more info on wake-to-sleep, there's not much out there for a baby this old. Should I be waking her every hour, or every hour and a half? Infant sleep cycles are 45 min, right? But by this age does that extend to 1 hr cycles? This seems to be the length of my daughters'. When I gently wake her, sometimes she fully wakes up and cries - very upset to be awake- and wants me to help her resettle. So then I tried barely waking her, but she continued to wake every 2 hours, so it wasn't enough to break her current cycle/habit. I don't really understand how waking her can eventually cause her to stop waking on her own at night. I've got to figure this out : ) Thanks!