What a mattress warranty covers#
A mattress warranty typically covers manufacturing defects, problems that arise from the production process rather than normal use. Common covered defects include:
- Body impressions (sagging) deeper than a specified threshold (typically 3–5 cm)
- Broken or protruding springs
- Seam splitting or cover defects not caused by misuse
- Abnormal deterioration of foam materials
Common warranty exclusions#
What a warranty does NOT cover is equally important:
- Stains or soiling: A stained mattress almost always voids the warranty entirely. This is why a mattress protector is non-negotiable.
- Normal comfort changes: All mattresses soften over time. This is not a defect and is not covered.
- Body impressions under the threshold: If the warranty specifies 4 cm and your impression measures 3.5 cm, you have no claim.
- Incorrect base: Using the mattress on an unsuitable base (wrong slat spacing, missing support) can void the warranty.
- Misuse or damage: Physical damage, burns, water damage or using the mattress as a trampoline is excluded.
- Commercial use: Consumer warranties do not cover hotels, Airbnb or other commercial use.
What length warranty should you look for?#
- 5-year warranty: Minimum acceptable for a quality mattress
- 10-year warranty: Standard for mid-range and above
- 15–20 year warranty: Found on premium mattresses (natural latex, Hypnos, Vi-Spring). These are genuine long-term commitments from the manufacturer.
Longer warranties are a signal of manufacturer confidence in their product. A brand offering only a 2-year warranty on a £700 mattress is telling you something.
Your legal rights vs warranty rights#
It's important to understand that in the UK, your statutory rights under the Consumer Rights Act 2015 are separate from and can exceed the warranty provided. If a mattress develops a fault within six years (five in Scotland) that is not due to wear and tear or misuse, you may be entitled to a repair, replacement or refund regardless of what the warranty says. You cannot be stripped of statutory rights by a company warranty.
Keep your receipt, delivery confirmation and any product registration emails as evidence for any potential future claim.
Warranties on the mattresses we score#
A warranty is only as good as its conditions. Here is what each brand in our catalogue offers and the clauses that decide claims.
| Brand | Warranty | Sag threshold | Common exclusions |
|---|---|---|---|
| The Foam People | Varies by model (check the product page) | Stated per model | Stains, unsuitable base, normal softening |
| Luxe Mattresses | 10 years | Typically 2.5cm | Stains, unsuitable base, normal softening |
| Emma | 10 years | Typically 2.5cm | Stains, unsuitable base, no protector, normal softening |
Three habits protect a claim: use a protector from night one, photograph the mattress on a suitable base when it arrives, and keep the order confirmation. If a sag develops, lay a straight edge across the bed, photograph the gap with a ruler in shot, and send that with the claim. Our lifespan guide explains why softening is not covered but sag is.
Frequently asked questions#
What does a mattress warranty actually cover?#
Manufacturing defects: springs that break or poke through, seams that fail, foam that cracks, and sagging deeper than a stated threshold (usually 2.5cm) without weight on the mattress. It does not cover gradual softening, comfort preference, stains or damage from a poor base.
Is a 10-year mattress warranty worth anything?#
Yes, within its limits. It is a genuine commitment that the structure will not fail in a decade, and claims for visible sag are usually honoured. It is not a promise the mattress will feel new for ten years.
Does a stain void a mattress warranty?#
Usually, yes. Most warranties exclude soiled mattresses on hygiene grounds, and inspectors will refuse to assess a stained mattress even for an unrelated fault. A protector is the cheapest way to keep the warranty alive.
Is a warranty pro-rated?#
Some are: full cover for the first few years, then a declining percentage of the price. Luxe and Emma offer full 10-year cover. Check the wording; 'up to 10 years' often means pro-rated.
Related reading#
- Mattress trial periods explained – the first line of protection
- How long does a mattress last? – sag versus softening
- Do you need a mattress protector? – the condition most claims fail
- Divan bed vs bed frame – the base requirement
- How to rotate a mattress – some warranties require it
