Offered by most mattress manufacturers, a warranty can help protect you from defects in your new mattress. It is an indication that the manufacturer is willing to fix certain flaws in the design, materials, and construction of the mattress for a certain period of time. However, a warranty is NOT a guarantee of durability, nor does it offer protection against general deteriorations in comfort or normal wear and tear. It is worth noting that very few other consumer products offer warranties as favorable as those in the mattress industry. One reason for this is that mattresses tend to be very well-made products with relatively simple construction. Overall, less than 1% of mattresses are returned due to warranty failures.
A mattress warranty typically covers flaws in the design, materials, and construction of the mattress. As a general rule, warranty failures are the types of problems that will reveal themselves in the first few years after you purchase your new mattress. In a traditional innerspring mattress, common examples include broken springs or open seams. For certain more sophisticated types of beds (e.g., air beds, adjustable beds, or waterbeds), individual components such as motors and remote controls may be addressed separately. It is best to check your warranty policy in advance to see whether any specific components are excluded or covered differently from the main warranty terms.
These days, most high-quality mattress manufacturers offer warranties lasting between 10 and 20 years. That said, since warranties do not protect against the general loss of comfort that happens naturally over time, warranty length does not necessarily correlate with mattress durability. Put another way, you should not assume that the length of the warranty has any correlation with how long the mattress will last before its comfort and/or support begins to deteriorate. Most experts recommend that mattresses be replaced at least every 10 years, even for higher-quality mattresses.
In the event of a problem, the manufacturer will likely want to have the mattress inspected. Depending on the retailer, the store where you bought the mattress might help you coordinate the details of submitting your complaint to the manufacturer. Be aware that even if your problem is covered by the warranty, some warranties are prorated, meaning that a fee can be subtracted for the amount of time the mattress was used, in which case the warranty may not cover the full purchase price or replacement value of the mattress.
Some warranties will void under certain conditions, such as if the mattress is soiled, if certain tags are removed, if the owner does not have the original receipt and/or warranty forms, or if it the mattress is used with an unauthorized or faulty foundation or frame. Be sure to check your warranty to understand any such limitations.