A cover bed is a decorative bed considerably much like a 4-poster bed. A typical canopy bed usually features posts at each of the 4 corners extending 4 toes excessive or more above the mattress. Ornate or ornamental cloth is commonly draped throughout the higher area between the posts and a stable swath of cloth might create a ceiling, or canopy directly over the bed.
A 4-poster bed is a bed with 4 vertical columns, one in each corner, that support a tester, or higher (usually rectangular) panel. This tester or panel will often have rails to allow curtains to be pulled around the bed. There are a selection of antique 4-poster beds extant relationship to the sixteenth century and earlier; many of those early beds are extremely ornate and are created from oak. An example of such an early sixteenth-century 4-poster resides in Crathes Fortress, which was made for the unique citadel house owners in the Burnett of Leys family.