Just as comfortable as your favorite t-shirt, but even cooler, our Cool Nights® sleep tee is made of special Cool Nights® fabric that's super soft and stays cool to the touch, so you'll sleep comfortably all night. Great for lounging, too, this tee perfectly coordinates with our Cool Nights® pajama pants and pajama shorts for all-over cool comfort. DetailsCool Nights® fabric is made with lightweight rayon fibers that stay cool to the touch and keep the fabric from sticking to your body.Scoop neckLong sleeves.27" from shoulder.93% rayon, 7% spandex. Machine wash. Imported.