Olbab here. I have a long history of interrupted and poor sleep stemming -partly- from aches at any pressure points below my waist. Am taking several meds that seem to help. To sit in a hard chair is a small hell after perhaps half a minute. A thick cushion helps quite a bit.
Your comment would be appreciated. Also have typical other old-man back problems but these are probably quite overcomeable.

I was quite an introvert in my youth and found undisciplined occasional meditation pretty helpful in - well, growing up. Still working on it.