Mattress Warranty: What does it really cover – and what should you look out for?

"10 years warranty" is written on almost every mattress advertisement – but what does that actually mean if there's a dip in the bed after four years? Many buyers only find out what their warranty truly covers when a defect occurs: some promises turn out to be pro-rata credits with annually decreasing value, others only apply to the core, not the cover, and still others require proof that hardly anyone can provide. Yet, alongside price and comfort, the warranty is one of the most important purchasing criteria – after all, you use a mattress for about 25,000 hours before it's replaced. This guide explains the difference between warranty, guarantee, and trial sleep, shows what types of damage are typically covered, and provides you with a checklist for the fine print – so you know what the promise on the packaging is worth before you buy.

The short answer: A mattress warranty is a voluntary manufacturer's service that goes beyond the two-year statutory guarantee – 5 to 10 years are common. It usually covers material defects and premature core wear, specifically visible indentations of about 2 to 3 cm depth when unloaded. Normal wear and tear, changes in comfort, stains, and damage due to improper use are not covered. Before purchasing, pay attention to three points: full coverage instead of pro-rata reimbursement, clearly defined indentation depth as a warranty case, and simple processing with photos instead of an expert appraisal requirement.

Warranty, Guarantee, Trial Sleep: three terms, three rights

The three instruments are constantly confused, yet they apply at different times. Trial sleep – at Ora Sleep 200 nights – is a right to satisfaction: you can return the mattress simply because you don't like it; a defect is not necessary. The article Returning a mattress shows how this works in practice. The statutory guarantee in Switzerland is valid for two years from the date of purchase: If the mattress has a defect that was already present at the time of delivery – such as a faulty seam or a defective foam core – you are entitled to rectification, replacement, or cancellation, regardless of any warranty promise. The manufacturer's warranty, finally, is a voluntary additional service with self-defined conditions: the manufacturer determines how long it runs, what constitutes a warranty claim, and what they will provide in case of damage. This is precisely why it's worth looking at the fine print – "10 years warranty" can mean almost anything from "full replacement for a 2 cm dip" to "20 percent discount on a new one in year 9."

What a good warranty covers – and what it doesn't

The most important measurement is the depth of the indentation: the permanent deformation is measured without a person on the mattress – with a straight edge across the sleeping surface and a ruler perpendicular to the deepest point. The article Identifying a worn-out mattress explains how to reliably detect a sagging mattress.

The pro-rata trap: when 10 years are only worth 3

The biggest difference between warranties lies in the reimbursement logic. With full coverage, in the event of a warranty claim, you receive an equivalent replacement mattress or the full purchase price for the entire duration. With a pro-rata warranty, the reimbursement value decreases with each year of use – a common model deducts 10 percent per year: if you have a clear warranty claim in year 8, you will only receive 20 to 30 percent of the purchase price, often only as a voucher for a new mattress from the same manufacturer. Let's calculate this with an example: a CHF 1,000 mattress with a pro-rata clause will give you a CHF 300 credit for a defect after 7 years – so you will pay another CHF 700 for a new purchase from the same supplier whose product just failed prematurely. Other clauses to look out for: warranty only for first buyers (relevant for moves and transfers), obligation to provide the original proof of purchase, exclusion if used without a specific slatted frame, and processing or transport fees in the event of a warranty claim. Rule of thumb: a short, clear full coverage is worth more than a long warranty with a depreciation table.

How to use your warranty correctly: what to do in case of damage

Step 1: Document. Remove the bedding and photograph the mattress from above and from the side – once with a straight edge (or a broomstick) across the sleeping surface and a ruler showing the depth of the indentation. Two to three meaningful photos are usually sufficient. Step 2: Gather documents. Proof of purchase or order confirmation is enough; for online purchases, the provider can often find the order using your email address. Step 3: Contact them. Briefly describe the problem, how long it has existed, and what base the mattress is on. Reputable providers decide on this basis within a few days – without an expert and without you having to send the mattress back at your own expense. Step 4: Check the solution. Replacement delivery, exchange of the affected element, or refund are common. Important throughout the entire useful life: observe the simple care rules – suitable base, occasional rotation, protector against moisture – because gross care errors are the most common legitimate reason for rejection. What realistically extends the lifespan can be read in the article on the lifespan of a mattress.

Checklist: examine the fine print before buying

Before purchasing, take five minutes to review the warranty conditions and check these seven points. First, the term: 10 years is a realistic, strong promise for high-quality foams – more than 15 years is usually marketing, as hardly any mattress remains hygienically usable for that long. Second, the reimbursement logic: full coverage or pro-rata? Third, the defined warranty case: Is a specific indentation depth in centimeters stated in the conditions? Vague formulations like "significant deformation" leave room for interpretation to your disadvantage. Fourth, the scope: core and cover or only the core? Fifth, the processing: photo proof via email or obligation to send in and have an expert appraisal? Sixth, additional conditions: prescribed slatted frames, registration requirements, or exclusion when using a topper are unnecessary hurdles. Seventh, the interplay with trial sleep: a provider who combines 200 nights of satisfaction return and 10 years warranty bears the risk over the entire product life cycle – this is the strongest quality signal you can check from the outside. What a good mattress should cost overall is explained in the article What does a good mattress cost?.

Frequently Asked Questions about Mattress Warranties

What is the difference between a warranty and a guarantee?

The guarantee is your statutory right in case of defects and is valid for two years from the date of purchase in Switzerland. The warranty is a voluntary, additional manufacturer's promise with its own conditions – often for 5 to 10 years.

When does a dip count as a warranty claim?

Permanent indentations of 2 to 3 cm depth or more, measured without load with a straight edge and a ruler, are common. The exact value is stated in the warranty conditions – make sure it is specifically quantified.

What does a pro-rata warranty mean?

The reimbursement decreases with each year of use, for example by 10 percent annually. In the later warranty period, you will then only receive a fraction of the purchase price, often as a voucher. Full coverage is significantly more valuable to you.

Does the warranty expire if I use a topper?

Not with reputable providers – a topper even protects the mattress. Nevertheless, check the conditions: occasionally, manufacturers restrict the warranty for certain toppers or unsuitable slatted frames.

What documents do I need for a warranty claim?

Proof of purchase or order confirmation, plus two to three photos showing the damage and the measured indentation depth. Reputable providers will make a decision based on these within a few days via email.

Does the warranty replace trial sleep?

No, it complements it. Trial sleep covers the initial phase, which is about preference and fit; the warranty then protects against material defects and premature wear for years.