Soprano Pewter Bedding by Peacock Alley. Much loved, classic collection of luxury duvets, sheets, shams and pillowcases that offer supreme comfort and timeless style. The richly colored pewter bedding is made from the highest quality, softest cotton sateen with a 420 Thread Count. Soprano Pewter is ideal for modern, transitional or contemporary home decor or any bedroom where a richly colored look with just a hint of sheen is called for.