Ok, today let's talk about smth less abstract: a bed or a sofa (for sleep)?
A positive side of sofa is saving space in a room, when you have folded it. Negative sides: sizes of sleeping surface and a coefficient of elasticity.
A positive sides of bed are a mattress and sizes of sleeping surface. A negative side are size of occupied place in a room and price.
So, a red pill or a blue pill?