Mens Batman Pajamas. Even the Dark Knight needs a good nights sleep, and these comfy Batman PJs are just what every hero needs to relax in! Featuring a black short sleeved tee featuring Batman's iconic mask and the slogan "Always be yourself, unless you can be Batman, then always be Batman" alongside a cool Batman logo print. Complete with contrasting grey bottoms that come with a comfortable elasticated waistband and tie waist.