It is difficult to determine from a picture whether the substance on the mattress is mold or not. Mold can appear as a fuzzy, discolored growth on surfaces, but it can also be mistaken for other substances such as dust or dirt. To accurately identify the substance, it would be best to inspect the mattress in person or consult with a professional. If there are concerns about mold, it is important to address the issue promptly to prevent potential health risks. **

The bedding in the picture is called a "duvet cover set." It includes a duvet cover and matching pillow shams, and is designed to cover and protect a duvet insert. This particular set features a striped pattern in shades of blue and white, creating a fresh and modern look for the bed. **

The bedding in the display picture appears to be from a high-end designer or boutique store. You may be able to find similar bedding at luxury home goods stores, department stores, or online retailers that specialize in high-quality bedding and linens. It's also possible that the bedding is from a specific designer or brand, so you may want to search for that information to find the exact product. **

When choosing bedding and a duvet for your bed, it is important to consider the size of your bed first. Make sure to select bedding and a duvet that are the appropriate size for your bed, whether it is a twin, full, queen, or king. Additionally, consider the material and thickness of the duvet based on your personal preferences and the climate of your location. Opt for high-quality, comfortable bedding and a duvet that will provide you with a good night's sleep. **

When you cover the duvet with the cover, it is called a duvet cover. The duvet cover is a protective layer that goes over the duvet to keep it clean and add a decorative touch to the bed. Bedding, on the other hand, refers to the entire set of items used on a bed, including the duvet cover, sheets, pillowcases, and any other decorative elements. So, specifically referring to the cover for the duvet, it is called a duvet cover. **

As an AI, I don't have the ability to see pictures. However, I can help you with a description or information about any of the pictures you're interested in. Let me know how I can assist you further! **

The picture is likely of dust mites, which are tiny beige creatures found in clothing or bedding. Dust mites are microscopic arachnids that feed on the dead skin cells of humans and animals. They are a common allergen and can cause allergic reactions in some people, particularly those with asthma or other respiratory conditions. Regular cleaning and vacuuming can help reduce dust mite populations in the home. **

To wash a black duvet cover with turquoise bedding, it is recommended to separate the black duvet cover from the turquoise bedding to prevent color bleeding. Wash the black duvet cover and turquoise bedding separately in cold water on a gentle cycle with a mild detergent. Avoid using bleach or harsh chemicals that may damage the colors. Once washed, tumble dry on low heat or air dry to prevent shrinking or fading. **