After more than 60 years of direct, personal experience, I’ve decided that sleep is weird.
Some nights I’ll go to bed and sleep as deeply as the dog shown in the picture above. I’ll be out for hours without any periods of wakefulness, and so far as I can tell during that time I’ve had one long, continuous dream that is like an extended feature film. I wake up and feel refreshed, but the sleep state lingers and it takes me a while to sharpen up and get going.
Other nights I’ll start off with a good period of rest, but then hit the sleep wall at about 3 a.m. I’ll wake up and struggle a bit to get back to sleep, and from then on until I get up for good, sleep will come in hour-long snatches, with lots of tossing and turning in between and dreams like sitcom episodes. When I finally give up trying to sleep any longer, I don’t feel particularly well rested, but I’m immediately alert.
And then there are nights when I hit that same sleep wall, wake up long enough to realize that I’m awake and need to try to get back to sleep, and then shift immediately into vignette mode, where I have brief, strange dreams interrupted by a minute or two of awareness before plunging back to get the next dream snippet. It’s as if my brain is shuffling the deck to sift through the day’s events and needs to lurch back to consciousness briefly before moving to the next selected short on the dream roster. And when I have one of those nights I finally wake up abruptly and get up immediately, wondering just how much strange stuff is lodged up there in my hippocampus.
I’m sure there are a lot of things that affect sleep patterns — what you’ve had to eat and drink that day, things that are going on in your life that cause concern, stress, physical fatigue, and so forth — but I suspect that much of it depends on subconscious stuff that just needs to be expressed for some reason. Sleep is intrinsically weird, and there’s not much we can do about it. Every night when you go to bed you just need to get ready for the show.