I know this is not earth shattering, but one odd thing I've noticed is that I'm yawning again. When I was profoundly sleep deprived I don't remember yawning much at all.
I take Lunesta and Sonata to help me sleep at night. I have severe depressive disorder and cannot sleep with out meds. I am trying to learn not to need the meds. Anyways, I yawn ALL the time and drive people around me crazy! They often tell me to "stop that"! Wish I could. Even when I'm not sleepy I yawn. I can see anything/one on tv yawn and it starts it. Yawnning now as I "speak".