Children's Hospital Colorado dresses up its tiniest patients in Christmas outfits. (Children's Hospital Colorado)DENVER - Children’s Hospital Colorado is in the Christmas spirit after dressing up its tiny NICU patients in holiday-themed outfits. "#HappyHolidays and #MerryChristmas from the most adorable reindeer, bears and penguins this side of the North Pole!" the hospital posted on Twitter on Christmas Day. "Thanks to our #NICU nurses and parents for making this festive dress-up party happen."The posted photos show infants dressed in various outfits including one candy cane-stripped onesie.