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Other common features include height adjustment and tilting the bed to raise the upper body or the lower body into the Trendelenburg or reverse Trendelenburg positions. [2] The market for motorized adjustable bed bases is expanding, as the mattress industry has begun to heavily promote them to consumers as a comfort and lifestyle choice. [3]
Adjustable beds or electric adjustable bed sizes differ from the standard bed size. The length of these beds differ from a standard size due to the nature of the bed needing to bend. So they are 200 cm in length rather than 191 cm. King size and super king size are normally two 75 cm or two 90 cm adjacent beds. [25]
A trundle bed (or truckle bed) is a low, wheeled bed that is stored under a twin/single bed and can be rolled out for use by visitors or as just another bed. [ 1 ] A pop-up trundle bed can be raised to meet the height of the normal bed, effectively creating a wider sleeping surface when positioned side-by-side.
In 1874 the mattress company Andrew Wuest and Son, Cincinnati, Ohio, registered a patent for a type of mattress frame with a hinged head that could be elevated, a predecessor of the modern day hospital bed. [4] The modern 3-segment adjustable hospital bed was invented by Willis Dew Gatch (1877-1962), chair of the Department of Surgery at the ...
With the increasing height of mattresses, manufacturers now make box springs in different heights so that the mattress and box spring pair maintain a standard height. Standard "high profile" box springs are 9 inches (23 cm) in height, whereas "low profile" box springs are between 5 and 5.5 inches (13 and 14 cm).
Studies suggest that adjustable-firmness beds are better for back pain. [26] Adjustable-firmness mattresses for medical use have special control mechanisms. In the 1990s self-adjusting air beds that automatically change their pressure periodically, or inflate and deflate several air chambers alternately, were introduced.