Box-spring
A box-spring (or divan in some countries) is a type of bed base typically consisting of a sturdy wooden frame covered in cloth and containing springs. Usually the box-spring is placed on top of a wooden or metal bedframe that sits on the floor and acts as a brace, except in the UK where the divan is more often fitted with small casters. The box-spring is usually the same size as the much softer mattress that is placed on it. Working together, the box-spring and mattress (with optional bed frame) make up a bed. It is common to find a box-spring and mattress being used together without the support of a frame underneath, the box spring being mounted directly on casters standing on the floor. Purpose The purpose of a box-spring mainly lies in the trade-off between ventilating the bed through the bottom and structural stability of the box-spring itself. Purposes The box-spring has a variety of advantages and purposes. Purposes include: elevating the mattress above the ground, increasing the ease of getting into bed and getting out of bed; Providing ventilation and allow body moisture to escape, reducing the growth of mold and mildew due to moisture retention; Creating