With apologies to the Bard (who, by the way, DID write the plays of Shakespeare), I find myself speaking that portion of Hamlet's most famous soliloquy quite a bit these days. I am in the midst of a bout wrestling with sleep.
Since both my husband and I are now retired, and thus can pretty much live to our own body clocks, we have discovered we have different internal clocks. My husband has always been an early riser--and now, even though he need not rise early, he continues to do so.
He winds down in the evening--so, don't even think about beginning a discussion after--say--9 p.m. His mind is sufficiently wound down that anything that revs up the adrenaline is counter-productive.
I, on the other hand, have discovered that I am a night owl. Try as I might, I cannot wind down much before midnight. Even if I get sleepy earlier in the evening, the MINUTE I get up to do the final evening chores (e.g. emptying the dishwasher) I am AWAKE. After I get ready for bed, and settle down in bed to read--I can read, get sleepy and turn the light out. Even so, I still almost always take at least a half an hour to fall asleep.
But several times, of late, that half hour has turned into hours. I had one night recently where I was still awake at 4 a.m. I really can't figure it out. Oh, occasionally, I know I have had a bit more caffeine than I should have. But we have changed our coffee habits--partly to help me. I now drink my diet Pepsi sans caffeine. And in the evening, I have ONE cup of coffee--that is half caf/half decaf.
Frankly, I chalk it up to aging. Just as "other things" change as we grow older, no doubt our ability to sleep changes too.
I mostly keep in good spirits--I figure, well, I can get by on 6 hours of sleep, or 5, or 4...You can see how the night goes, as my mind keeps bouncing around, careening off the walls of my skull.
I think I'll start reading every time I can't sleep. At the current rate, I should be able to whip through several novels a week!