I think most of us are experiencing sleep issues during lockdown. For me, it’s a mix of wakefulness, wild dreams, dozing instead of non REM, sensitivity to the early dawn, and so on. One aspect is that I wake up, frequently, singing. Many tunes wash through my cerebral cortex, I would love to say that each one is a celestial aria, worthy of the greats, but in fact they are usually monotonous three note riffs which would not occasion any loss of sleep for a Novello nominee. You may experience something similar.
However, I defy anyone to tell me that they also sprang to wakefulness today at 03:15, singing “Hey, hey! I’m a bicuspid!” * Takes that dream about all your teeth falling out to a whole new level.
I was laughing so hard I had to decant to the spare room.
*tune available on request.