"I&#039;ve been taking nytol for a week now and they do work for trouble sleeping as I work night shifts and its hard to sleep when the sun is shining through the window. BUT its making me miss days of work because I will sleep for 14-16 hours at a time, its making me sleep through my alarm (I have the sonicboom alarm clock which shakes the whole bed and is really loud but its now not waking me up) it knocks me out within 30-40 min of taking it"