"using 4 wks or so. initially half tab since i&#039;m sensitive. i wasn&#039;t experiencing severe grogginess as w/another sleep aide years ago. but it didn&#039;t always put me to sleep and i would wake often. now using full dose, sleep came sooner and harder but i still wake at least once a night, and though there&#039;s no extreme grogginess in a.m., it makes me sleep about 10 hrs and takes me a couple hours to wake up. i have begun taking a natural-based energizer to wake up and also drinking black tea, and this morning i also took extra &quot;energizing&quot; daily vitamin plus green tea capsule. i never seem to fully wake, am feeling exhausted, i notice irritability and foul mood. i&#039;m not going to keep using. worse than before i started."