Over a lifetime, we’ll spend close to 230,000 hours sleeping — so, about one third of our lives is spent lying on a mattress. If you hadn’t clocked the importance of knowing when you should replace your mattress before, now may be the perfect time.
Over time — and way sooner than our accumulated lifetime of 9,496 days of sleep — dust mites, mould and mildew build up, and mattress materials lose their integrity and begin to sag. Besides the health implications of sleeping on a “mature” mattress, throughout our lives our sleep needs will change, our living situations shift, and our bedroom budgets rise and fall.
It’s clear we need some guidance on when we actually need to swap out our sleeping surface — and if there’s anything we can do prolong its limited life. Laura Di Lorenzo is the founder and CEO of Sunshine Mattress Co., with more than a decade’s experience in the organic mattress industry, mastering everything from customized mattress design to premium material sourcing. Di Lorenzo is dialled in to the details needed to determine how often you should replace your mattress.
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1. What Are the Telltale Signs?
“A few key signs make it pretty obvious when it’s time for a new mattress,” says Di Lorenzo. “If you’re waking up with allergy [or allergy-like] symptoms or feeling persistent back pain, it’s a good indication that your mattress isn’t doing its job anymore!”
Another giveaway that it’s time to replace your mattress is sound. If your mattress squeaks and groans with every micro movement, that could mean the materials are breaking down. Weight is also a factor to keep tabs on; if the mattress is heavier than when you first bought it, that could be from moisture build up. And when a mattress gets damp, dust mites, mould and mildew aren’t too far behind.
2. What Happens if You Ignore Said Signs?
Di Lorenzo confirms that, over time, mattresses loose their ability to provide proper support, with memory foam and spring mattresses being especially prone to this. “If you wait too long to replace your mattress, you might notice a few issues… it can cause your body to feel misaligned or uncomfortable during sleep.” Persistent back pain, sore hips and joints, or general unexplainable fatigue (from unconsciously tossing and turning throughout the night) can also arise.
3. What Contributes to a Mattress’s Wear and Tear?
“If you toss and turn a lot in your sleep, that constant movement can wear down the materials quicker,” says Di Lorenzo. “Using the mattress for things like watching TV or reading instead of just sleeping, [also] puts additional strain on it.”
She also points out that a person’s weight can be a factor, as well as improper frame support, such as using an old box spring or an ill-fitting foundation.
4. How Can We Lengthen the Life of a Mattress?
By rotating and flipping a mattresses regularly, you’ll avoid sleeping in the same spot and wearing down a small, specific area. A solid support system, such a slat base (rather than flexible slats or a box spring), makes sure pressure is evenly distributed throughout the mattress. A mattress protector is always a must, shielding the mattress’s material from spills, stains and dust.
“Lastly, controlling the humidity in your room helps,” says Di Lorenzo. “Open the window in the morning and pull back your sheets to let your mattress breathe and dry out any moisture.”
5. Which Mattress Materials Hold Up the Best?
“Latex is hands down the most durable material out there,” says Di Lorenzo. “Organic latex mattresses can last 20 years or more if treated well, which makes them an excellent long-term investment.”
She believes that when combined with moisture-wicking wool, you get the ultimate mattress-material match. “The wool helps control moisture, which is key for maintaining a fresh and dry mattress… these two materials together give you the most long-lasting, comfortable sleep.”
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6. What Are the General Time Guidelines for Replacing a Mattress?
“It used to be that you’d replace your mattress every 10 years, but with the rise of mattress-in-a-box options, people are replacing their mattresses much sooner these days,” says Di Lorenzo. Memory foam softens and thins over time and spring mattresses lose their spring. So, depending on how well you take care of them, a conventional mattress will maintain its form and function anywhere from one to eight years.
7. What Should We Look for in a New Mattress?
Before even looking at available mattress options, Di Lorenzo suggests getting a clear picture of your own sleeping patterns. How do you usually sleep: back, side or front? What are your pain concerns, such as sore hips or back? Do you like the feeling of sinking down or would you prefer a firmer surface?
“Testing in person is ideal so you can feel the mattress for yourself, but if that’s not an option, I’d suggest scheduling a video consultation with the brand you’re considering.” And if you’re worried about having to dig deep for a new bed frame to accompany the new mattress, you can rest easy. A new frame is only necessary if you’re changing mattress size or if your current support system is letting you (and your mattress) down.
