Over 20 million Cool Nights® PJs sold. With a peek of our new geo lace on the hem, these ultra-soft shorts will instantly elevate your sleepwear collection. Details: Elastic waistband Slip-on style Side pockets Relaxed fit 4” inseam Cool Nights® is made with lightweight rayon fibers that stay cool-to-the-touch and keep the fabric from sticking to your body 93% Rayon, 7% Spandex. Machine wash cold.