Ambien (and Xanax) is great, taken with a VERY LITTLE alcohol seems to increase its ability, a Baileys, something like that for me. It works with no after affect for me. Something in the back of my mind nags that in some way or another this stuff (even the Ambien) has to be addictive so I am really careful and only use it on o'night flights. I would think most reasonable Dr's would prescribe a small amount for any healthy patient for this purpose.
Its available in Mexico w.o. prescription. I don't buy it there, but it is.