Write the next sentence in the following story.

How to sell a mattress
Look up local laws regarding the sale of used mattresses.
Laws regarding the sale of used mattresses and bedding vary by state or municipality. In many areas, used mattresses must be sterilized using approved methods and appropriately labeled before they can be resold.
While these laws mostly apply to third-party sellers, such as furniture stores and consignment shops, it is important to familiarize yourself with the law in your area before you attempt to sell a mattress. Do an online search, using terms like " legal to sell used mattress in [my state].