Boyfriend sleeps within seconds?!?!?

So he told you he's been taking sleeping pills (which are almost never natural) - the human body isnt ready to go to sleep for a reason, and he's making it go to sleep. All of these pills can cause side effects which arent good and could lead to further problems with his sleeping patterns. Sincerely ask him again if he's stopped taking the pills, and if he has it may take a few weeks for the effects to wear off. Otherwise tell him to consult with a doctor.