"i have been taking ambien for more years than i can count due to insomnia and nightmares.  i have experienced the &quot;sleep walking&quot; activities, mostly repetitive conversations and eating which have been benign and harmless.  fortunately, i have family that is up later than me so they keep me from doing anything too outrageous.  sometimes i have a vague memory of my activities if my husband brings it to my attention, but if i am particularly stressed or anxious the side effects are amplified and my memory is gone.  as for morning grogginess, a shower usually perks me up."