Door closed, but windows open and fan on

Open a crack so the cat doesn't wake me up at 4am.

Open, because kids.

Closed as I don't really want my roommates to check in on me sleeping

Open to get some air exchange

Closed. The missus and I can be... active at times, and we have nocturnal teenagers.

I removed the door from the bedroom, so 'open', I guess.

I prefer open, but I got a cat a few months ago that won’t leave me alone if I leave it open. So, closed.

closed except cat so always open now :(

Bed room door closed, but usually not locked. 8 sentry turrets have the outer perimeter of the house secured. /s

Closed, I already have scars from our cat's mad night escapades.

Open, because I have a split AC in the living room of my bungalow and the bedrooms get warm even with the doors open. Also the dog and cat would never allow a closed door, and they rule this roost.

Always fully open! More airflow, less stuffiness. Having said that, we don’t share a home with anyone else.

Closed. Otherwise dog sneaks in, climbs up on the bed and falls asleep. The he slowly but surely takes over the whole bed.

Prefer closed, but like many others here, the cat doesn’t allow for that without making her opinion VERY well known.

Closed. I prefer my door closed for privacy reasons, so why would I keep it open when I sleep?

Closed and locked. (Trauma likely)

Sleeping in the house's veranda, so no doors 😶‍🌫️

We have a saying in our house... "ghosts" that means close the door we are going to sleep and don't want to let the ghosts in. Closed. Always closed.

Open. I live alone and I have a cat that comes and goes throughout the night. Having the door opened allows me to hear anything that should not be going on in the house.

Open because pets

Depends on the outside temperature.

If it's warm outside, all my flat's windows are open and for better airflow I leave all doors open, too.

If it's cold outside, everything is closed to retain the heat in my bedroom.

Closed, i don't like mosquitoes.

Sleeping with the door open should be a crime

Both, because I'm lazy. Whatever the door is at is how it will stay.

When sleeping, me close door

Door closed, window open.

Closed, air-conditioning is expensive. When me and my wife travel to colder areas we do tend to sleep with doors open though but it highly depends on the house itself. There has to be a certain vibe or fenshui so to speak where open door feels pleasant and not this uncertainty.

Usually closed because I like to be naked, but I would prefer it open for the pets to come and go as they please.

I live on my own so all the doors in the flat are open all the time, even the bathroom ones.