Update your closet today with Calvin Klein. Shop all the latest designer nightwear in our selection. Available in a wide range of colors and styles, these nightwear are built to last from materials such as cotton. Calvin Klein's nightwear are a worthy investment, which will work for both casual and formal occasions. The label’s designs come in a range of colours and textures, too. Cotton items are a great investment, and it pays to care for them properly. Cotton is a material that often requires special care to keep it looking its best. We recommend checking the individual care label for each piece and follow the instructions carefully. Cotton is a popular material that is used in a wide range of garments due to its softness and durability, and is also easy to care for. It’s simple to care for too, and most pieces can be washed in the machine at 30°C unless specified otherwise on the care label. Choosing a cycle with a moderate temperature instead of hot will help prevent damage and shrinkage to cotton and cotton-blend garments. Air dry instead of using a tumble dryer, and lay flat if possible. Discover and shop the latest range of nightwear available from Calvin Klein.