When my son was a baby, he was a terrible sleeper. Even when he was in Elementary school, he was still not a perfect sleeper. I grew to just accept that until he became a teenager when I had to drag him out of bed. My son was sensitive to schedule and routine changes and was, in general, a light sleeper. I can see this sensitivity in almost every sleep challenge he’s ever had. For example, when my son was 3 years old, he started to have a few night-wakings every night, for 3 nights in a row.