A canopy bed is an ornamental bed considerably much like a 4-poster bed. A typical canopy bed usually features posts at each of the 4 corners extending 4 toes high or more above the mattress. Ornate or decorative material is commonly draped throughout the upper space between the posts and a strong swath of fabric could create a ceiling, or canopy straight over the bed.
A 4-poster bed is a bed with 4 vertical columns, one in each corner, that assist a tester, or upper (usually rectangular) panel. This tester or panel will typically have rails to permit curtains to be pulled around the bed. There are a number of vintage 4-poster beds extant relationship to the 16th century and earlier; many of those early beds are highly ornate and are created from oak. An instance of such an early 16th-century 4-poster resides in Crathes Citadel, which was made for the original citadel homeowners in the Burnett of Leys family.