Voted “right” with the way you worded it. Standing at the foot of the bed, looking at the headboard…I prefer the left side.
I do, but of course when I’m sharing a room with my mother she gets that one.
When we were first married, I slept on the left side of the bed, and he was on the right. But shortly thereafter, we switched and it’s been that way ever since. Dunno why.
On occasions when I’ve traveled alone, I tend to choose the more convenient side of the bed - usually nearest the night stand where the remote sits. Since I mainly sleep on my back, it doesn’t seem to matter which side of the bed I take.
Totally doesn’t matter to me. At home she sleeps on the side that controls the window ac. When traveling, I wait until she chooses, then get in on the opposite side.
I sleep alone and I still sleep closer to the bedside table/bathroom. I rotate the mattress twice a year to wear it evenly. 
Ours is alarm clock driven. My wife almost always gets up before me since it takes her considerably longer to get ready. Hence, she sleeps on the side nearest the alarm clock. By the time my alarm goes off she is up and out of the bed.
That’s the right side, per the OP, though I wonder if that’s another poll about what “right and left” mean without context. I agree with the OP’s definition.
I tend to think of them as “driver’s side” and “passenger side” as if you were side by side in a car.* With the seats reclined all the way back, of course!
*although then you’d have to specify which country you were driving in, so you can never win, can you?
“Driver’s” side? Ahem.
If you have a race car bed like cool people, then there is no ambiguity!
My wife took the right side of the bed when we moved into our current house. I’d always had the right side before that, not just with her, but before that, with any girlfriend I shared a bed with. After 19 years, it still feels wrong, but it ain’t gonna change.
In the middle of the night, I usually move to the guest bed to finish out the night. This is undoubtedly part of the reason.
At home, I’m on the right side, but it varies when we stay in hotels. Where I sleep is usually in this order of priority:
[ol]
[li]The side closest to the air conditioning source[/li][li]The side of the bed that has a clock (I wake up during the night and tend to care what time it is)[/li][li]The side of the bed closest to the bathroom[/li][/ol]
I like to be as far from the door as possible. This habit carries over in the case of hotel rooms with twin beds as well.
I assume you have your guest’s consent, right?
Well, what is your definition of “hospitality”?
Fresh squeezed orange juice, bagels, and lox for breakfast.
No option for “top side”?
(actually I live alone, but I don’t think it would much matter)
Married 16 years. Never slept sides. Mostly we have had beds pushed into the corner, so whoever goes to bed first ends up on the inside. If there is any punctuating of the equilibrium, we end up where we end up. No real rhyme or reason to it.
When the boychik was a baby and I was nursing, I was on the outside most of the time, but now there’s no reason for anyone to sleep anywhere in particular.
Left side and I hate it. For years I was on the right side, as is proper and as God intended in his divine plan. Then a couple years ago when we finished a renovation for a new master suite and got our new king size bed, she violated the Natural Order of Things and took the right side. My side. Now I’m on the left side, still uncomfortable with it. Fortunately I do travel for business frequently and it gives me a brief respite where I can sleep on the right side again bringing balance to The Force.
You might like this Chris Porter bit about the subject, then; it’s become known as the “rape nudge” bit. **** It’s audio, no video but there is NSFW language ****