Yes, you can use a duvet cover with a comforter, but it's important to ensure the comforter fits well inside the cover. Duvet covers are typically designed for duvet inserts, which are usually lighter and less bulky than comforters. If your comforter is similar in size to the duvet cover, it can work as a substitute. Using a duvet cover over a comforter can protect it from stains and wear, and it allows you to easily change the look of your bedding. Just make sure to secure the comforter inside using corner ties or clips if available.

Choosing the right duvet cover size depends on your bed size and personal preference for overhang. Generally, the duvet cover should match the size of your duvet insert for the best fit. For example, a queen-size duvet cover fits a queen duvet insert. If you prefer extra drape over the sides of your bed, you might opt for a slightly larger cover. It's helpful to check the dimensions listed on the product to ensure compatibility with your bedding. Proper sizing ensures comfort and a neat appearance on your bed.

A duvet cover primarily serves as a protective layer for your duvet insert, helping to keep it clean and extend its lifespan. It acts like a large pillowcase for your comforter, shielding it from dirt, spills, and wear. Additionally, duvet covers are an easy way to change the look of your bedding without replacing the entire duvet. They often come with closures like zippers or buttons to keep the duvet insert securely inside. Using a duvet cover also makes washing simpler since you can clean the cover more frequently than the duvet itself.