Sleep scrobbling is the act of allowing last.fm to scrobble your song plays while you sleep. You would really only do this if you wanted to appear as if you listen to an artist more than you actually do. Only a depraved individual would commit such a heinous act so don't do it.
"Did you hear Jackie sleep scrobble the entirety of Joanna Newsom's discography? I mean, Have One on Me is a two hour album so I get it but c'mon!:
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.