There isn’t really an expiration date for your mattress. Mattresses wear down over time, and it may be hard to tell when it’s time to be in the market for a new one. It’s suggested that most mattresses have a life span of seven years, but research from The Better Sleep Council has found that people tend to keep theirs for an average of 10. Some signs that it’s time to move on from your current mattress include feeling like you sleep better in hotels, regularly waking up with stiffness, numbness, or aches, noticing sagging and seeing tears in the fabric, and the box spring underneath squeaks when you move. Read more to know if it's time to dump your mattress for a better one.