In certain part of asia, long ago thet use to torture crime suspect into confession. One's called "iron coffin", which is basically this. It is a coffin-like box made of iron, small enough to contain one person without any space to move an arm, and several small punctured hole around mouse area. A suspect would be locked inside and then move under direct sunlight in the morning and left there till they confess their crime, despite they really did it or not). The sun, heat, and humidity in southeast asia is quite something, so this is a pure horror.