A cover bed is an ornamental bed considerably much like a four-poster bed. A typical canopy bed often options posts at each of the four corners extending four ft excessive or more above the mattress. Ornate or ornamental cloth is often draped across the higher space between the posts and a strong swath of cloth could create a ceiling, or canopy directly over the bed.
A four-poster bed is a bed with four vertical columns, one in each nook, that help a tester, or higher (often rectangular) panel. This tester or panel will often have rails to allow curtains to be pulled around the bed. There are a selection of vintage four-poster beds extant dating to the sixteenth century and earlier; many of these early beds are highly ornate and are comprised of oak. An instance of such an early sixteenth-century four-poster resides in Crathes Fort, which was made for the unique fortress owners within the Burnett of Leys family.