A traditional innerspring mattress is estimated to last about five and a half to six and a half years. Check yours for lasting dips, exposed springs and changes in support rather than relying on its age alone. This is not a fixed replacement date. An older mattress may not need replacing if it is comfortable, supportive and in good condition.
A traditional innerspring mattress is expected to last about five and a half to six and a half years. Treat that as a guide, not a deadline. Estimates vary: innerspring mattresses may average five to eight years and may last eight to ten years with good maintenance.
Innerspring mattresses made with high-quality materials and cared for properly may last 10 years or more. That is a possibility, not a promise for every mattress.
A study estimated that innerspring and all-foam mattresses were 13.2 years old at disposal, on average. It grouped the two mattress types together. It also said disposal age does not necessarily measure useful life.
Materials, construction, use and care all matter. The soft comfort layers near the surface tend to wear before the support layers beneath them.
Weight and use: Heavier sleepers may wear out a mattress faster, especially one with soft foam layers. A bed used nightly also wears faster than one used occasionally.
Sleep position: Your position may affect where indentations form.
Construction: A strong support base and solid edge support can help keep layers aligned and reduce the risk of sagging edges. Lower-gauge coils are thicker and may last longer than thinner, higher-gauge coils.
Moisture: Sealy Australia advises keeping its mattresses dry and well aired. It says excess moisture can affect parts inside the mattress, including the spring system.
When shopping, look beyond coil count. A higher count alone may not mean better comfort or support. For more on the springs themselves, see types of mattress coils.
Check for lasting dips and exposed springs when deciding whether to replace your mattress. Also consider how well the bed supports you and whether your sleep has changed.
A permanent body indentation can be a sign to replace a mattress. But minor lasting impressions can be common. Inspect the bed before deciding.
Springs that poke you or show their outline are a sign to replace it.
Sagging, lack of support, restless sleep, rolling toward the middle or hearing creaks are reasons to consider replacement. Check the base and the source of any noise before deciding the mattress is responsible.
Sleeping better at a hotel or a family member’s home is another clue to consider, not a test on its own.
How do body impressions differ from serious sagging?
A body impression is a lasting dip where you lie. Minor impressions are common as foam comfort layers age. Deeper sagging could make the bed uncomfortable. A permanent body indentation can be a sign to replace the mattress. But minor impressions can be common. Check the dip and how the bed feels before deciding.
A.H. Beard says visible impressions can be normal as its mattresses’ comfort layers respond to your body. Its guide gives up to 40 mm for pillow-top mattresses. For non-pillow-top mattresses, it gives up to 25 mm. Those are its own guidelines, not limits for every bed.
To check a dip, lay a yardstick or broomstick across it. Then use a ruler to measure from the center of the padded quilting, not a seam. Do not press down while measuring. Follow your maker’s own instructions if you plan to make a warranty claim.
Yes. The base can cause or worsen apparent sagging, so inspect it before judging the mattress.
Remove the mattress and look for broken or bowed slats, missing center support, an uneven platform, wide slat gaps, loose frame joints, and damp or damaged boards.
Where practical, place a straightedge across the base.
Repair uneven support before judging the mattress. A new mattress on a failing base can develop the same problem.
A box spring is not always required. For example, Serta allows a platform or slatted frame instead for its mattresses. The slats must be no more than 2 inches apart, and a center support leg must reach the floor. Check your own mattress maker’s requirements rather than applying that spacing to every bed.
Wear can occur in the padding, the coils or the base. So a dip does not prove the coils have failed. Softer comfort layers tend to wear before support layers. Innerspring coils can lose tension or break and cause dips where you lie.
In mattresses with connected coils, the coils cannot compress separately. Sagging may develop over time. One study compared springs from 32 used mattresses. Springs from areas that bore weight were weaker under pressure than springs from less-loaded areas of the same beds. The authors said the weaker springs might eventually fail to provide their original support. They also said the change might not be visible when the mattress is not in use.
A squeak does not always come from the mattress. Separate the mattress from the base and check whether the noise continues. A headboard or floorboard can also squeak. For its spring mattresses, IKEA says noise can occur when springs hook together. It says springs in a new mattress can also make noise if they have not yet softened.
Sometimes the base can be repaired, but the right fix depends on what has failed. Repair uneven base support before deciding whether the mattress itself needs replacing.
For a mattress defect, check your warranty. Some companies repair flaws. Others may replace the mattress or offer a refund or store credit, depending on their terms. For example, Nest Bedding says it may repair or replace a mattress if it confirms a covered defect under its warranty. If a coil is broken and your warranty does not apply, ask the maker or a repair shop whether it can be fixed.
Follow your model’s care instructions: good care can help a mattress reach its maximum lifespan. Rotation and flipping directions differ by mattress.
Rotate as directed. Sealy Australia gives instructions for its Posturepedic mattresses. It says to turn them 180 degrees every two weeks for the first three months. After that, it says to turn them every three months.
Flip only when appropriate. Some traditional innerspring mattresses have matching filling, springs and padding on both sides. These can be flipped when rotated, about every six months. Sealy Australia says not to flip its Posturepedic mattress.
Keep it dry and clean. Use a protector, vacuum or spot-clean as needed, and keep the mattress in a well-ventilated room. Sealy Australia advises treating spills on its mattresses promptly with a damp cloth and avoiding excess moisture.
Use the required support. Check your maker’s base instructions. Simmons warns that folding, standing or jumping on its mattress can cause damage.
It may cover a defect, but coverage depends on the warranty and the cause. Broken or bent coils and sagging that happens too soon may be covered if they qualify. Sagging from ordinary wear typically is not covered.
For example, Serta has a 10-year limited warranty for its mattresses bought on Serta.com. It covers certain manufacturing defects, including sagging. It also covers compressions deeper than 3/4 inch on smooth tops or 1.5 inches on quilted tops. Nest Bedding covers qualifying coil-system manufacturing defects, including broken coils, under its warranty terms. It does not cover a change in feel or support without a clear structural or manufacturing failure of the coil system.
Read your own warranty before filing and check its support and measurement rules. For example, Nest says you must follow its measurement steps and provide clear records. You must also show that the support met its requirements. Otherwise, your claim may be denied. For its warranty claims, Tempur-Pedic asks for proof of purchase, the mattress law tag, foundation information and photos of the defect. Proof of purchase is not needed if the purchase is already on file through registration or a direct purchase.
Does a more expensive innerspring mattress last longer?
Not necessarily. A higher price does not guarantee a more durable mattress. Instead, compare the materials and construction in the comfort layers and support core.
Should you replace an old mattress if it still feels comfortable?
Not automatically. If you sleep soundly and the mattress still appears to perform well, you may be able to keep using it longer. At seven years or older, consider replacement and check for other signs of wear.
A topper may add comfort if the mattress is still supportive but feels too firm or lacks cushioning. A supportive topper can sometimes counter mild sagging, but do not use one to mask serious sagging. If the springs, support core or base have failed, the topper follows the dip rather than repairing it.
We read 31 published pages from 20 sites (Sleep Foundation, tomsguide.com, matizenterprise.com, zinus.com and 16 more), checked in October 2026. Every sentence in the answers above cites one of them; the offer card at the end names its own source. This page reports published sources only; we did not test mattresses in person.