Beauty Makeup Today's the Winter Solstice! Make the Most Of These 5 Overnight Products By Marianne Mychaskiw Marianne Mychaskiw Instagram Marianne Mychaskiw is a New York-based freelance writer and editor who covers everything from beauty and style, to wellness and entertainment. InStyle's editorial guidelines Published on December 21, 2012 @ 11:40AM Pin Share Tweet Email Photo: Courtesy (3); Time Inc Digital Studio Not only is it the end of the Mayan calendar today, today is also the winter solstice! The annual astronomical event marks the shortest day of the year, and the official start of winter. In honor of the longest night of 2012, we put together a list of our five favorite overnight products that go to work while you sleep. Unless you have any post-Mayan apocalypse parties to attend, turn in early to let these skin serums, hair masks, and DIY facials do overtime so that you wake up to a brighter complexion and healthier strands. Click through our gallery to shop our five favorites! MORE:• Cotillard's Makeup Artist Launches Skincare• Out Now: Drybar's New Hair Tools!• Found It! Jessica Biel's Tinted Moisturizer