The higher the fill power, the better the insulation and durability The higher the fill power, the better the insulation and durabilitybig duvet insert. For a big duvet insert, a fill power of 500-700 is ideal for providing ample warmth without being too heavy.Not to be confused with a pillowcase, a pillow sham is generally known and used for more decorative purposes, and is typically not meant to be a sleeping surface. A sham can have a knife-edge finish or flanges on all four sides. Generally speaking, a sham has an opening in the back to insert the pillow.
Satin:Satin is an extremely similar weave to sateen — in fact, it’s basically the same thing. Satin also uses a three or four over, one under weave. However, thedifferencelies in the materials used to create the weave. Satin is made exclusively with filament fibers, while sateen is made with staple fibers.