" I love Cool Nights. I hate to wear my other pajamas. These are the nicest pajamas I’ve had in years." —Amber Experience our bestselling PJs with over 23,000 5-Star reviews. Details Drawstring waist Pockets 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.