Which bed frame is closest to the ground? 

A platform bed is the bed frame that is closest to the ground. These bed frames generally are always closest to the ground and come with a sturdy or slatted surface.  Platform beds do not need a box spring or any other base layer except if you would like the additional height, they add to the bed frame. A platform bed is any type of bed frame is that is able to support the mattress on it owns. 

As platform beds do not require box springs, they are ready to use soon as you have purchased them. More old-fashioned types of bed frames such as four-poster beds or canopy beds require a mattress base and even may need a box spring to also go with it. Platform beds are rather modern and come in a range of styles, from streamlined to upholstered. A handful of platform beds also come with storage compartments which make them ideal for small bedrooms. 

There are three types of platform beds:

Advantages and disadvantages of platform beds:

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Disadvantages-