A cover bed is an ornamental bed considerably just like a 4-poster bed. A typical canopy bed normally features posts at each of the 4 corners extending 4 ft high or more above the mattress. Ornate or ornamental cloth is usually draped across the upper house 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 nook, that assist a tester, or upper (normally rectangular) panel. This tester or panel will typically have rails to allow curtains to be pulled around the bed. There are a variety of antique 4-poster beds extant courting to the 16th century and earlier; many of these early beds are extremely ornate and are created from oak. An instance of such an early 16th-century 4-poster resides in Crathes Castle, which was made for the original castle house owners within the Burnett of Leys family.