Cool Comfort Cotton Modal Shortie Set NAVY Pyjamas M&S NL Nightwear "New York Turquoise Stripe" Crisp Cotton Sleep Shorts Buy Navy Stripe Short Set Pyjamas from the Next UK online shop Matching Sleepwear Sets Cotton On. The Summer Navy Mehroon Grey Striped Contrast Sleepwear Shorts Set for boys is made from a soft, breathable cotton blend fabric, offering comfort and durability. The set features a stylish navy and maroon grey striped design, perfect for warm summer nights. The relaxed fit ensures easy movement, making it ideal for both lounging and sleeping.