I've been having issues sleeping lately, and a few days ago, the flat below us started demolishing walls at 8am. This has been going on for a week, and I've never slept better. It sounds like they're demolishing the floor I'm sleeping on, but somehow I can just ignore it and sleep soundly, whereas normally I wake up with the smallest sound, like a dog barking outside my soundproof windows.
That's like Joe Pesci in My Cousin Vinny where he stays overnight in a cabin and wakes up and freaks out at every little noise, but when he's held in contempt and there's a prison riot going on, he's sleeping like a baby.
Very odd.