For a long, flattering look you'll love, choose our Soma Intimates exclusive Cool Nights® long tank nightshirt. Made from our Cool Nights® fabric, it helps you sleep in comfort because the soft fabric is specially designed to stay cool to the touch. Side slits and a high-low hemline give it a modern finish with room to move, a beautiful way to sleep or lounge.DetailsCool Nights® fabric is made with lightweight rayon fibers that stay cool to the touch and keep the fabric from sticking to your body.Crew neck.Sleeveless.46" from shoulder.93% rayon, 7% spandex. Machine wash. Imported.