When you're cool and comfortable, the rest is easy. our Soma Intimates exclusive Cool Nights® pajama top is made of soft Cool Nights® fabric that stays cool to the touch, so you get a great night's sleep. The timeless button-front design is finished with a sleek notch collar and chest pocket with piping detail that add the perfect finishing touches.DetailsCool Nights® fabric is made with lightweight rayon fibers that stay cool to the touch and keep the fabric from sticking to your body.notch collar.Short sleeves.Button front.Chest pocket.Irritation-free covered neck seam.27" from shoulder.93% rayon, 7% spandex. Machine wash. Imported.