Situation: I am facing a curtain, while there is a mini fridge on my right and an armchair on my left.
Alternative situations: Facing the curtain trying to open it, while my food is being heated in the microwave at my right. I am facing the curtains, right side, using both hands to slide them open to let natural light into the room.
Question: What is behind me that you sleep on when you are tired at night?