For extra warmth and comfort, try one of these pajama costumes this Halloween. Maybe you’re too lazy to change out of your pajamas and into your costume, or maybe you just want to relive your childhood by wearing an awesome onesie. Whatever your excuse, these fun and comfortable pajama costumes will have you looking like your favorite character with little to no effort on your part. Try a superhero onesie like the Wonder Woman onesie or the Jack Skellington onesie. You can even create a pajama couple costume with the Joker onesie paired with the Harley Quinn sleep tank or the Batman onesie paired with the Batgirl onesie.