Sleep like a Saint. The One Thirty Five waffle duvet cover sets are designed with supreme sleep in mind. Crafted from 100% pure cotton with a 200 thread count, they are available in Single, Double, King and Super King size options. Crisp, clean cotton is the perfect material to sleep in thanks to its breathability and softness. Each duvet cover set is available in a choice of White, Light Grey and Dark Grey for a contemporary and versatile choice. Each piece in the sumptuously soft waffle collection has a thread count of 200. Thread count is the number of vertical and horizontal threads per square inch of your bedding. A high thread count such as 800 has a denser feel, while 200 is usually lighter and more airy. One Thirty Five is a luxury bedding brand by Where Saints Go. Featuring carefully curated collections of beautiful bed linen and luxurious bedding essentials, it was made by Saints for those who want to sleep well. This One Thirty Five duvet cover set is designed to fit a Double bed. The standard UK double bed size is 135 x 190cm.