Mattress toppers do a lot to improve sleep comfort, adding extra softness, support, and even helping with temperature regulation. But because they sit directly on top of your mattress, they also tend to collect sweat, dust, and everyday build-up over time. While they’re not always the easiest bedding item to clean, mattress toppers should still be refreshed regularly to keep them clean, comfortable, and in good condition – just like the rest of your bedding . However, you want to do this without damaging their structure or reducing their comfort. As Barbara Stern, textile and bedding expert at Ottoman Textiles explains: “The materials used to make mattress toppers are so fragile that they cannot be cleaned as you would your bed sheets .” Read on to find out the best way to clean your mattress topper – and how often you should be doing it. Read more: Best mattress protectors to keep your bed like new How often should you clean your mattress topper?…