Rather odd question but after reading the help centre I think it still fits here.
I need to sleep some nights of the week in my garage, but over a period of months; potentially over multiple different seasons. Garage is not connected to the house and is without heat, electricity or windows. It is big, can be secured throughout the day, is dry and mostly wind proof. Floor is concrete. Central Europe.
I want to make the experience as pleasant as possible with winter approaching.
So far I am imaging a 'single room' large pop-up tent (no ground to peg ropes). This should reduce wind chill a little and keep bugs out.
Then a cheap thick mattress inside, with a winter duvet and multiple additional cheap blankets. I have a backup -15°C winter sleeping bag I would keep inside, along with LED torch etc.
Does this sound reasonable for a number of months? Would something additional under the mattress help reduce heat loss (multiple sleeping mats)? Would mould be a factor from breathing condensation? Cotton bedding an issue?