Over 20 million Cool Nights® PJs sold. This cropped pant is the cutest way to upgrade your old PJs—plus, they'll keep you cool for a great night's sleep. Details Drawstring waistband Hidden side pockets 25" 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.