Add some whimsy to your sleep wardrobe in our new long sleeve sleepshirt in our #1 Cool Nights® material. Long sleeves stop the chill but Cool Nights® material keeps you chilled out--our sleepshirts are the best of both at bedtime. Details Long sleeves V-neck 36 length Cool Nights® fabric 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. Imported. Mix and match pajama pants, shorts, and tops or shop our #1 Cool Nights® pajama sets—a perfect gift for women.