A canopy mattress is a decorative mattress considerably just like a 4-poster bed. A typical canopy mattress usually features posts at every of the 4 corners extending 4 toes high or more above the mattress. Ornate or decorative fabric is usually draped throughout the higher house between the posts and a strong swath of cloth could create a ceiling, or canopy immediately over the bed.
A 4-poster mattress is a mattress with 4 vertical columns, one in every nook, that help a tester, or higher (usually rectangular) panel. This tester or panel will typically have rails to allow curtains to be pulled across the bed. There are a variety of vintage 4-poster beds extant dating to the sixteenth century and earlier; many of those early beds are highly ornate and are made from oak. An example of such an early sixteenth-century 4-poster resides in Crathes Fortress, which was made for the unique fort house owners in the Burnett of Leys family.