Beauty sleep is guaranteed with Slip’s clever Contour Sleep Mask. Protect your delicate eyelash extensions and completely block out the light thanks to its unique shape, which contours on the inside to sit away from your eyelids. It allows additional space for your eyelashes to sit – but even without extensions, it’ll make sure no light creeps in. As always, it’s made from specially-commissioned Slipsilk™ to protect your skin and hair.