…or Why won’t this leg knock it off so I can sleep?

As I lay here ever wondering,
Ever frustrated and pondering,
Wishing I could sleep,
My leg has other blunderings
As it spasms, my sleep sundering,
Leaving me to weep.
I toss and turn
And turn and toss,
And try to find a way
To make the spasms cease and desist;
Alas, I’m still awake.
Everyone is firmly slumbering,
A sandman’s job well done,
But here I sit with twitching leg
Wishing it would be done.