The left, because I usually sleep on my right side (also facing the wall, not the window).

left as well. Sometimes, I make myself lay in the middle and take up more space.
I also like for my foot to hang off the side of the bed. So much more comfty than it sticking straight up or nearly folded straight if laying on my stomach

middle...

Yes I am left handed but prefer the right side. But when I sleep with my girlfriend I get the left side which suits me cuz her big bed is very comfortable so I sleep good on it anyway.

No... though I do have to sleep on my side...

The one right in front of the air conditioner and fan.

Diagonal

Left

I sleep on my stomach so I need the right side of the bed that way my arms and legs can fall off that side without trouble lol

Furthest away from the door so that if someone breaks in I have a chance to defend myself. Sucks to be the person nearest the door 😬🤣

not that I'm lazy but I always take the side closest the door so I don't have to walk much

Water side