A cover bed is a decorative bed somewhat similar to a four-poster bed. A typical cover bed normally options posts at each of the four corners extending four toes high or more above the mattress. Ornate or decorative cloth is often draped throughout the upper area between the posts and a strong swath of material could create a ceiling, or cover straight over the bed.
A four-poster bed is a bed with four vertical columns, one in each nook, that support a tester, or upper (normally rectangular) panel. This tester or panel will usually have rails to allow curtains to be pulled around the bed. There are a selection of antique four-poster beds extant courting to the 16th century and earlier; many of these early beds are extremely ornate and are made from oak. An example of such an early 16th-century four-poster resides in Crathes Citadel, which was made for the unique citadel homeowners within the Burnett of Leys family.