Cotton curtains are widely used and recommended by designers around the globe for window dressing for several reasons.

Firstly, cotton is a natural and breathable fabric that can help to regulate the temperature in a room. It allows air to circulate through the fabric, which can keep a room cool and fresh in warm weather, and retain heat during the colder months.

Secondly, cotton is a versatile and durable material that can be easily dyed in a range of colors and patterns, making it suitable for any interior design style. It can create a casual and relaxed atmosphere, or a formal and elegant look depending on the chosen design.

Thirdly, cotton curtains are easy to clean and maintain, making them a practical choice for window dressing. They can be machine-washed or dry-cleaned, depending on the care instructions, and will withstand frequent washing and wear.