Did you know that the mattress industry actually tests how well mattresses hold up over time by using a giant rolling pin machine that simulates years of tossing and turning? This helps them figure out how to make mattresses that won't sag and will give you good back support for a long time. If you're waking up with aches and pains in the Spring Garden area, it might be time for a new mattress! Just like a good mattress supports your body, healthy teeth support your smile. Star Dental Institute. Book now for a check-up!