BeautySpaceNK Slip Beauty Sleep To Go Pink Travel Set - Removable Cover Whether you re on a long haul flight or treating yourself to some much needed beauty sleep on the go - this luxurious travel pillow slipsilk travel pillowcase and matching slipsilk sleep mask set will have you dreaming in no time. The beauty secret of celebrity hairstylists dermatologists and beauty experts. THE SlipSILK DIFFERENCE: 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.