When should I replace my mattress?

If your current mattress feels uncomfortable, shows signs of sagging or lumpiness, or causes you to wake up feeling stiff and sore, it may be time for a replacement. You might also notice you sleep more soundly on a different bed, such as one in a hotel or at a friend’s house, which can indicate that your current mattress no longer provides sufficient support. While most mattresses last around 7–10 years, personal comfort and proper support should guide your decision above all else.