Perhaps you've not yet reached an age where you frequently need to get up to pee in the night (sometimes several times) and keep the lights off to avoid disturbing a sleeping partner... ;)

It ain't the sleeping in bed, it's the crusty eyelids in the morning. :-)

It's to make sure that when you walk around half-asleep early in the morning trying to get a diaper, that you don't step on a pointy lego brick.

Do you walk heel or toe first [1]? I would assume that lego bricks only hurt when moving heel first since humans had to deal with stony environments for quite some time. Not that you should stop cleaning up but this could be another technology to deal with the bricks.

[1] https://news.ycombinator.com/item?id=1086446 Barefoot Running

Heel first. Interesting idea :)

I only use my living room in the evening. When else would I want it tidy?

Well, maybe Saturday morning. But starting the day tidying is not great either.