I have never been able to figure this out. I take the same amount of klonopin every night for the past four years which is 1/2 milligram. I feel as though I sleep pretty well waking some nights once or twice. But every single day the fatigue feels different...some mornings I wake up feeling okay but within an hour or two start to feel very fatigued. It's not a sleepy feeling but a total head/mental fatigue. Some mornings I wake up incredible unrefreshed and feel just horrible which lasts all day. Anyone have any clue why this changes on a daily basis. It's is never the same two days in a row. I have to say my insides never feel calm and peaceful. I listen to my meditation tapes and they calm me while playing but as soon as it's over I am right back to that wired insides. I had a particularly bad day as I slept actually great last night...up at 7 am and by 9 am I was starting to feel very fatigued in my brain/head but not physically in the rest of my body. Then I get upset and frustrated and cry and that make me even more tired. Not sure if it's adrenal/cortisol related.