Bolster: is a long narrow pillow or cushion. Most often cylindrical, bolsters can be added to a bed or sofa as a decorative element. They can also function as head or back support and are often used as bumpers in cribs or act as barriers in the beds of small children.
That cheap scatter cushion might be beautiful but you should think twice before buying a stack of them…a good scatter is all in the stuffing you see.
#8 When selecting a scatter cushion the density of the inner is quite important. Try not to buy scatters that are either too hard or too soft as they have a low comfort factor and will be an irritant when sitting. Down or feather-mix inners are considered to be the premium choice and can easily be reshaped and plumped. Try avoiding cushions with shredded foam as it gets lumpy or 100% polyester/hollow fibre inners that become as flat as a pancake. Rather have 2 quality feather-mix scatters on your sofa than 5 inferior scatters.