Hi, am a mother of 2. I'm 33 years old this year. My girl is 6 years old and my boy is 2 years +. I am sleeping with my boy everyday. Here is my question, my son's sleeping pattern is quite bad, he moves a lot and always come to my side, so a few times in a night, I would wake up and bring him back to his place. However, there were a few occassions where I have difficulty falling back to sleep after waking up at about 4.30am or sometimes about 5am,.... Can I know why? And recently I told my problem to one of the chinese doctors, he said waking up after 5am is ok but not 4am + coz that's the time our lungs are in the cleansing process. So, his opinion was if I wake up at this hour means I have some lungs problem. Is it true? I wouldn't wake up by myself. Normally I was awoken by my son, then I would go and ease myself and when I return to my bed again, I couln't fall asleep.... This chinese doctor's opinion is making me worried and once I awoke, I would think of his words and that making me even more harder to fall asleep. Please help me. thanks.