The beauty secret of celebrity hairstylists, dermatologists and beauty experts.You asked. We listened. The contour sleep mask is designed to protect your delicate lashes.SLEEP WITH SLIP:The slip contour sleep mask has been specifically designed with delicate eyelash extensions in mind**. The shape of the contour on the inside of the sleep mask has been designed to sit away from your eyelids and allow additional space for your eyelashes to sit while you get your beauty sleep.**While slip has made all efforts to design its contour sleep mask to be suitable for eyelash extensions, slip acknowledges that not all lashes are the same and the contour sleep mask may not be suitable for all lengths or types of lashes. Slip encourages you to use your own discretion in deciding whether the contour sleep mask is suitable for you.THE SLIPSILK DIFFERENCE:The slip contour sleep mask is made with slipsilk, the same silk used in the award-winning slip pure silk pillowcase.Slip pure silk products are made using slipsilk, developed and refined for over ten years to provide the ultimate combination of shine, thickness, softness and durability.