Twas the Night Before Christmas Blue Book and Pajama Set Twas the night before Christmas and all through the house, not a creature was stirring, not even a – well, maybe no mouse was stirring, but the kids definitely were! Start a new bedtime tradition this holiday season and make their nightly rituals more memorable and their sleep more restful with this adorable gift set that includes the beloved children's book "Twas the Night Before Christmas"! Your little ones will love wearing these super soft pajamas made from organic cotton featuring the same festive characters that they're seeing in the pages of the book. Size 2