Most mattresses are designed to last 5-7 years. If it's been a few years since you bought your mattress, you need to ask yourself if you are sleeping comfortably and still waking up refreshed. If you are waking up tired with back and neck pains even after a full night's sleep, chances are your mattress is losing its support and needs a replacement. Some of the obvious signs are lumps and sagging in the middle. You can improve your mattress's support considerably by rotating your mattress (top to bottom) periodically. We recommend rotating mattresses every 6 months to even out the wear. Our mattress specialists can help you find your perfect mattress via online chat, phone call or during one-on-one consultation in our stores.