The Doctor, Clara and others in “Deep Breath”

Who invented this room?!

Doctor, please, you have to lie down.

It doesn't make sense. Look, it's only got a bed in it. Why is there only a bed in it?

Because it's a bedroom. It's for sleeping in.

Okay, what do you do when you're awake?

You leave the room.

So you've got a whole room for not being awake in? But what's the point? You're just missing the room.