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Sleep is your skin’s chance to refresh and renew itself while you rest, reversing the impact that the likes of central heating, pollution and sub-zero temperatures have on it during the day. That’s where sleep masks come in – combining skin-loving ingredients like vitamins, antioxidants and hydrating hyaluronic acid to strengthen skin’s own defences whilst you slumber and turbo-charge your beauty sleep for maximum results. All you have to do is close your eyes and let your skincare do the hard work. See six of the best below.