Cotton pajamas are sleepwear made primarily from cotton fabric, known for its softness and breathability. They come in various styles, including sets with a top and bottom or one-piece designs. Cotton is a popular choice for pajamas because it helps regulate body temperature, making it comfortable for both warm and cool nights. These pajamas are often available in a range of colors and patterns, appealing to different tastes. They are easy to care for, as they can typically be machine washed and dried. Many people prefer cotton pajamas for their comfort and durability, making them a staple in sleepwear collections.