I am a natural since I was a kid but..I think I am somewhat of a deep sleeper. I sleep trough EVERYTHING no noice or anything is going to get me awake, people I often tell me why how I can sleep trough certain things..such a deep sleeper X_X. But I still wake up after every REM/dream period on automatic and recall all my dreams, and then go to sleep easily again. Thats nice I gues ^_^ Also I always meditate before I go to sleep for at least 30 minutes, mabey that has anything to do with it?