Product Details This is a Beyond Beauty product which means it has been sourced tried and tested and finally declared one of the most new and innovative heroes out there. ; We spend a third of our lives in bed. So what could be better than sleeping on a Slipanti-aging anti-sleep crease anti-bed head pure silk pillowcase? Wearing a luxurious Slipsilksleep mask at the same time of course. So your beauty sleep truly isn't interrupted. Slippure silk products are made using slipsilk. Specially commissioned and made to exacting standards slipsilkhas been developed and refined for over ten years to provide the ultimate combination of shine thickness softness and durability. In laboratory testing slipsilkwas shown to absorb significantly less face cream and create less friction on average versus cotton pillowcases.