I’ve had the “Tetris Effect” happen to me - at one time I was really, really into Tetris (To the point where I could quite happily play GameBoy Tetris at max speed for… well, I did it for a few hours in one game once, much to the annoyance of my mate who actually owned the GameBoy and had agreed it would be, “Swap on death”), and I had the ‘visualising falling bricks’ ephemera afterwards, and vivd dreams about Tetris for a few days afterwards.

But, then again, if I get into anything pretty seriously, I’ll have dreams about it. I got really, really into building with Lego’s and I had dreams about that; same with Minecraft and No Man’s Sky.