My problem is having major difficulty falling asleep, so I take Ambien on a fairly regular basis. Ambien doesn't kick in for about a half an hour to an hour. The problem is the next day I open the book/ebook I was reading to the bookmark and basically find that I don't remember reading the last ten pages or so and then have to reread to get back to that place

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After doing this several times, I have learned to put the book down once I take Ambien (back away from the book), its helped my sanity a great deal.
On Ambien Patrick Kennedy sleep drives, my husband sleep eats (the klondike bar incident was the funniest and creepiest), and I sleep read.