Sleepless nights

I appear to have lost the ability to go to sleep.  It's like losing a key; I have no idea where it is.  I rack my brain but can't find it. 

  I go to bed, but sleep does not happen.  I feel like Macbeth, or is it Lady Macbeth,  but without the guilty conscience.  On some occasions, I do finally nod off, waking in the morning to find I have migrated to some hitherto unvisited part of the bed with sheets and blankets tangled around me.  But lately, even this has eluded me.

  So I lie there, trying to think of something, anything, to divert my mind and coax it to release me.

  Sometimes I get up and have breakfast and then sneak back to bed.  This sometimes fools my sub  conscious for a time, not always. Or I move to another bed.  I open the window.  I close the window.  I turn on the ceiling fan; it get too cold; I turn it off.  I turn on the electric blanket.  Then I turn it off again. I go downstairs, lie on the couch, and turn on the television.  My feet get cold.  Alternatively, I feel hot all over.  Neither condition lasts.

  I am wide awake, and alert enough to do my income tax.  But I don't want to do my income tax.  I want to sleep.  I want to knit  up the ragged sleave of care.