I never take anything for sleep (fear of my pouch over-filling and not waking in time to empty it.)but I did make a discovery years ago that works really well...I take gravol (motion sickness med) when I am traveling by plane(+6hrs). I took one to keep my pouch quiet (it slows down the digestive system...) and I would end up falling strait to sleep.
Whenever I have dizziness or nausea I take one and I sleep like a baby...it is worth the try if you only use it occasionally...if you are afraid of being knocked out for too long you can try the chewable child's dosage...works great on me for short trips...
Sharon