Ambien works well for me I dont wake up grogy feelin and it helps me to not wake up 100xs a night to piss. (hmmmm ...... is that sweat or piss covering me when I wake up jk) anyways If I take a pill and 1/2 (10mg/pill) it messes me up like I usualy take 10mg then one night i tried 15mg and I was screwed up couldnt walk without fallin over (not asleep but wasted feelin) looked in the mirror and freaked out at what I saw my face was all jacked up lookin and so were the peeps on TV it sucks bad so I stick with 10mg and im asleep b4 I get any of those drunk feeling sides. Not sure what sleep "stages" it effects though.
WeeMan