Pieridae Duvet Day Blue Duvet Quilt Bedding Cover and Pillowcase Bedding Set. Our Simple Duvet Day Blue Duvet Set doesn't pull any punches with its cool and contemporary colour that never goes out of fashion! From the Pieridae branded range, our Duvet Day Blue is a popular design which takes our favourite animal that one step further. Featuring a stunning dog, this design will look fantastic on any modern or traditional bed and will suit all manner of decor and is fully reversible. Perfect for master bedroom, children's or students room and even as a housewarming gift, The New Duvet Day Blue Duvet Set in very trendy stripes on the reverse will please even the pickiest of people! This is one bedding set you will not want to remove. Made from cotton and polycotton and the bedding set is machine washable at 40 degrees and suitable for tumble dryers.