Sleepless Again and Again

I think I’m tired when I retire,
I know I fall asleep.
Something’s wrong, I don’t know what.
I sit up wide-eyed wondering.
I check the locks, I pace the rooms,
I check the taps for leaks.
I check the knobs and burners
of the stove, and smell for gas.
Satisfied we’re safe I pad
in slippers off to bed.
A couple hours later,
I repeat my rounds quite certain
that I haven’t checked before.