Hi A.. :o) I'm a 43 year-old mother of three, as well. First of all, children are all different, just like no two adults are exactly alike. I know it's hard being awakened so often at night. My two girls would wake up often, and my son wouldn't. The very first night we had him home from the hospital, he slept until about 10:30 or so in the morning. Needless to say, it frightened me (he's my middle child), and I had to go check on him! I know with him, I was very tired; I had lost quite a bit of blood at his birth. So, when he woke up at night, it took me about ten minutes to get in to him, and by then, he had cried himself back to sleep. I do believe he is a heavier sleeper than my daughters, also. I hope this helps. Honey, you may just have a light sleeper. At your next dr.'s visit, ask your dr. for suggestions. Maybe, he will have something helpful to tell you. Take care.