A personal observation, no doubt shared by others
Tiredness lies beneath the eyes
Behind the zygomatic rise
In pools that fill with sleep denied
That rises as some inner tide
But bring the focus there to bear
Of that somehow always aware
And oft those waters will recede
For slumber then there is no need
Jan Freeman's Wanderings - Let Nature be your guide 
Hey Jan, so glad you’re back and hope you are feeling better. I love this and so agree (though a nice sleep is very alluring to the exhausted). Keep those waters flowing my friend.
Hi, Bob. Sometimes sleep is so exhausting 🙂