Acrostic: Nightmare

This is mostly an experiment, to see if I could make an acrostic and an ABCABCABC rhyme scheme work. 

No respite after work and weary day
I lie awake, awaiting morning’s light
Gazing with sleep-starved eyes into the deep
Hoping for kindly sleep, already prey
To whirling thoughts, to formless, foolish, fright.
Monstrosities pursue me – horrors creep,
And cruel disaster smiles to block my way.
Run down by my mind’s hounds, I dread the night
Exhaustion rides me – yet I fear to sleep.