Boys Ben 10 Pajamas. It's hero time! Jump into these awesome Ben 10 pajamas and transform into an evil-busting hero! This super cool pajama set features Ben with 10 iconic aliens from the series including Diamondhead, Cannonbolt, Heatblast, Stinkfly, Four Arms, Wildvine, Grey Matter, Upgrade, XLR8, and Overflow! Paired with vibrant green bottoms, these jammies are perfect for making bedtime hero-time!