Old school Nintendo fans will love these super comfy sleep pants printed with a seriously retro Mario print. In this print Mario holds a hammer at the ready, red text declares "HAMMER TIME!!!" and faint flaming barrels roll to and fro. All reference the plumber's pre-Mario Bros. adventures when he starred in the original Donkey Kong. Instead of mushrooms, his only power up was a great big hammer! Awesome gift for Mario fans. <br><br> These sleep pants are made from 100% cotton and feature an elastic waistband with an adjustable drawstring.