The Better Sleep Council recommends replacing your mattress every 7 to 10 years, but physical changes such as weight loss, injury, or surgery can alter your body’s position when you sleep and make a mattress change necessary before your mattress reaches its end of life. If your mattress no longer provides adequate support, it can lead to a poor sleeping posture. This misaligns the spine and strains muscles, causing or worsening lower back pain. It’s important to choose a mattress that not only supports your back and provides comfort, but also meets your personal preferences, so you can get the best, pain-free night’s sleep possible.