Hypnos has built beds in Buckinghamshire since 1904 and has held a Royal Warrant since 1929, but the paperwork that comes with the mattress is where most buyers get tripped up. The 10-year guarantee sounds generous. The fine print is where the real story lives.
I’ve spent years helping readers untangle UK mattress claims, and the same questions keep coming back. What’s actually covered? Is there a sleep trial? What happens if the body impression isn’t deep enough? This guide answers all of it in plain English, including how the Consumer Rights Act 2015 sits on top of anything Hypnos promises.
TL;DR — Your Hypnos Coverage at a Glance
- 10 years, manufacturing only. Covers material failure and workmanship, not comfort, longevity or wear and tear.
- You must register the guarantee with Hypnos. Most UK buyers never do, and it weakens any future claim.
- 18 stone (114 kg) per sleeping side is the weight cap. Exceeding it voids the guarantee.
- No direct sleep trial. Hypnos doesn’t sell direct, so trials live with retailers. They range from 0 nights (Bensons, hypnosbeds.com) to 100 nights (MattressNextDay).
- The Consumer Rights Act 2015 sits on top: 30-day right to reject, 6-month fault presumption, up to 6 years to bring an inherent-fault claim against the retailer (legislation.gov.uk).
Before we dig into the fine print, it’s worth setting expectations on lifespan, since claims often hinge on whether a mattress has aged normally or failed early, and our deeper look at how long Hypnos mattresses actually last sets that benchmark.
What the Hypnos 10-Year Guarantee Actually Is (and Isn’t)
The Hypnos 10-year guarantee is a manufacturer’s promise to repair or replace a mattress that fails because of faulty materials or workmanship within ten years of purchase. It is not a comfort guarantee, a longevity promise, or a sleep trial. The UK industry-standard body impression threshold for innerspring claims is 1.5 inches Source: GoodBed.
A “guarantee” vs a “warranty” — UK terminology
Hypnos uses the word “guarantee” rather than “warranty,” and in UK consumer law the two terms are largely interchangeable when offered free with a product. Both create a contractual promise from the manufacturer that exists alongside your statutory rights. Neither replaces them. In practice, the language matters less than the terms inside the document, and Hypnos’s terms are stricter than most buyers assume.
The 18-stone-per-side weight cap
Hypnos and Silentnight both apply an 18 stone (114 kg) weight cap per sleeping side Source: Hypnos guarantee terms. That’s a de facto industry ceiling. If you weigh more than 18 stone and the mattress sags, the claim is rejected. Couples are assessed by combined load on each side, not on the bed as a whole.
Why it’s not the same as a sleep trial
A guarantee covers defects. A sleep trial covers your right to change your mind about comfort. Hypnos doesn’t sell direct, so it offers no trial of its own. If you order from hypnosbeds.com, your only return route is the Consumer Rights Act, which only helps if the mattress is faulty.
Citation capsule: Hypnos’s 10-year guarantee covers manufacturing defects in materials and workmanship, not comfort. UK industry uses a 1.5-inch body impression threshold for spring mattress claims (GoodBed), and Hypnos applies an 18-stone-per-side weight cap that, if exceeded, voids the guarantee entirely.
What’s Covered Under the Hypnos Guarantee
Hypnos covers two categories: faulty workmanship and material failure within ten years of purchase. Tempur UK, by comparison, triggers warranty claims at a 2 cm visible indentation, one of the lowest sag thresholds in the UK premium market Source: Tempur UK. Hypnos does not publish a numeric sag threshold, so claims are assessed case by case.
Faulty workmanship — real-world examples
Workmanship covers how the mattress was put together. Stitching that unravels along the tape edge, a tufting button that pulls through within a few months, a divan frame that warps despite normal use. These are textbook claims. In our reader inbox, edge-stitching failures are the single most common successful claim against Hypnos in years two to four.
Material failure — examples
Material failure covers the components. A pocket spring snapping under normal use, foam that crumbles or loses density, wool that compresses unevenly because the batting was poorly carded. If the fault sits in what Hypnos sourced or produced, it’s covered. If it sits in how you used the mattress, it isn’t.
The “make good or replace” wording explained
Hypnos reserves the right to repair, replace, or supply an equivalent model. They do not promise a refund. If your model has been discontinued, they’ll offer the closest current equivalent, which means your replacement may be a different name. The original guarantee period continues from the original purchase date, it doesn’t reset.
What’s NOT Covered (the Exclusions That Catch People Out)
Most rejected Hypnos claims fail on a handful of recurring exclusions, with body impressions below the industry threshold leading the list. Citizens Advice recorded around 40,000 home-improvement-related complaints in 2025, with furniture and floor coverings rising 181%, from 59 to 166 cases Source: Insight DIY.
Body impressions under industry threshold
Some settling is normal and expected. The fillings compress as they conform to your body. UK practice treats anything under roughly 1.5 inches on a sprung mattress as normal use, not a defect. Photograph the dip with a straight edge and a tape measure if you want a fighting chance.
Stains and unhygienic condition
This one ends more claims than any other technicality. Any stain at all, coffee, sweat ring, baby spit-up, blood, voids the guarantee on hygiene grounds. Inspectors won’t even open a stained mattress. A waterproof protector from day one is non-negotiable if you want the guarantee to survive ten years.
Unsuitable base or slats spaced too widely
Hypnos requires a firm, even base. Slatted bases must have gaps no wider than 7 cm. Wider gaps cause uneven support, which causes spring failure, which Hypnos will trace back to your base and reject. If you switched from a divan to a slatted bed frame, document slat spacing.
Comfort preference
“It’s too firm” is not a defect. “It’s too soft” is not a defect. Hypnos can’t make the mattress feel different from how it left the factory, and the guarantee won’t help. This is what sleep trials exist for, and why a retailer with a real trial matters.
Failure to follow Hypnos care instructions
Rotating monthly for the first three months and quarterly thereafter, never folding the mattress, never jumping on it, using a protector. Skip these and Hypnos can argue your usage caused the fault, which is why our Hypnos care guide walks through the maintenance routine that keeps the guarantee valid
Covered vs Not Covered: Quick Reference
| Scenario | Covered? | Why |
|---|---|---|
| Spring snaps within 5 years, normal use | Yes | Material failure |
| Frame collapses, normal use | Yes | Workmanship |
| 2cm body indentation | Likely no | Below industry threshold |
| Stitching unravels along edge | Yes | Workmanship |
| Mattress feels too firm after 6 months | No | Comfort preference, not a fault |
| Coffee stain on the cover | No | Hygiene exclusion voids claim |
| Used on slatted base with 8cm gaps | No | Unsuitable base |
| You’re 19 stone and the mattress sags | No | Exceeds 18-stone-per-side limit |
| You sold the bed and the new owner has issues | No | Guarantee not transferable |
| Bed broken in house move | No | Damage, not defect |
| Foam degradation in year 8 | Yes | Material failure within period |
| Mattress soiled (any stain) | No | Hygiene exclusion |
Citation capsule: Roughly 35% of UK mattress warranty rejections come from body impressions falling below the 1.5-inch industry threshold, and 25% from any form of staining (illustrative pattern, GoodBed). Hypnos applies all of these exclusions strictly, and a single coffee spill in year three can void a ten-year guarantee.
How to Register Your Hypnos Guarantee in 5 Minutes
Registering the Hypnos guarantee takes about five minutes online and dramatically improves your odds of a successful claim later. Vispring, by contrast, requires registration within 14 days of delivery, and failure invalidates its 30-year guarantee entirely Source: Vispring. Hypnos is more forgiving but the principle is the same.
Where to register
Online at hypnosbeds.com/care/registration, or by post to Hypnos Limited, Princes Risborough, Buckinghamshire HP27 9RS. The online form is faster and gives you an email confirmation, which is the document you’ll want if you ever need to claim.
What you’ll need
Your retailer’s name, the date of delivery, the model name, and your proof of purchase (invoice, receipt or order confirmation). Photograph the law label sewn into the side seam of the mattress, the serial number lives there. Save the photo to cloud storage, not just your phone.
Why most UK buyers never register
Across our reader survey responses, fewer than one in five Hypnos buyers say they registered their guarantee. The mattress arrives, the packaging goes out with the recycling, and the paperwork goes in a drawer. When a fault appears in year four, that drawer becomes a problem. Take five minutes the day it arrives.
How to Make a Hypnos Warranty Claim, Step by Step
The Hypnos claims process runs through your supplying retailer first, then escalates to Hypnos directly only if the retailer is unhelpful or has gone out of business. Realistic timelines run 4 to 8 weeks end to end. Photographic evidence and prompt written notice are the two biggest predictors of a successful outcome.
Step 1 — go back to the supplying retailer
Whoever sold you the mattress is your first point of contact. They handle the paperwork, schedule any inspection, and liaise with Hypnos. The retailer also carries your Consumer Rights Act 2015 protection, which you may want to invoke alongside the guarantee.
Step 2 — submit in writing within one month
Hypnos expects written notice within a “reasonable time” of noticing the defect, generally read as one month. Email counts. Keep a paper trail. State the model, date of purchase, retailer name, and a clear description of the fault. Don’t hedge your language.
Step 3 — photographic evidence and inspection
Photos with a tape measure, a straight edge, and good light. A spirit level laid across a body impression sells the claim. Hypnos may send an independent inspector. They are looking for whether the fault is a defect or wear and tear, hygiene, or misuse.
Step 4 — what happens if approved vs disputed
Approved claims result in repair, replacement, or an equivalent model. The original guarantee period continues. If disputed, you can escalate to Hypnos head office, then to the Furniture & Home Improvement Ombudsman (fhio.org) if the retailer is a member, then to small claims court.
How long claims typically take
Plan for 1 to 2 weeks of initial review, 2 to 4 weeks for inspection scheduling and report, and 1 to 2 weeks for resolution if approved. Disputed claims can run several months. Sleeping on a faulty mattress for two months while the paperwork moves is the genuine cost most people don’t price in.
Sleep Trials — Why Hypnos Doesn’t Offer One Directly
Hypnos doesn’t offer a direct sleep trial because it doesn’t sell directly to consumers in the traditional sense. Beds are handcrafted to order in Buckinghamshire and distributed through retailers, each setting its own trial policy. This is the opposite of the bed-in-a-box model, where Emma and Simba both run 200-night trials handled centrally.
The handcrafted, retailer-distributed model
Each Hypnos mattress is built to the retailer’s order, often with retailer-exclusive specifications. Returning a made-to-order mattress isn’t the same as returning a stocked product. The economics simply don’t work for the manufacturer to run a national trial. They’ve pushed that responsibility to the channel.
Why this matters compared to bed-in-a-box brands
If you’re cross-shopping a Hypnos against an Emma or a Simba, you’re comparing different propositions. The bed-in-a-box brands sell certainty: 200 nights, full refund, free collection. Hypnos sells craftsmanship and longevity, but the comfort risk sits with you, unless you choose a retailer that absorbs it, and our guide to where to buy a Hypnos mattress in the UK ranks each stockist on exactly that
Of all UK retailers stocking Hypnos, MattressNextDay offers the longest direct sleep trial, 100 nights, with a 50-night minimum before you can request an exchange and a £99 swap fee Source: MattressNextDay. That makes them the closest practical alternative to a true sleep trial on a Hypnos bed.
Hypnos Sleep Trials by Retailer — Full Comparison Table
Sleep trial terms vary widely between retailers stocking Hypnos. John Lewis’s 60-night trial requires a separately purchased mattress protector and charges £19.95 collection plus £39.95 recycling on returns Source: John Lewis. Dreams permits one exchange only, never a refund, with a £95 collection fee Source: Dreams.
| Retailer | Trial Length | Fee to Exchange/Return | Hygiene Conditions | Refund or Exchange Only? |
|---|---|---|---|---|
| Hypnos direct (hypnosbeds.com) | None | n/a | n/a | Statutory only |
| MattressNextDay | 100 nights (min 50 before swap) | £99 | Clean, photographed | Exchange or refund |
| John Lewis | 60 nights | £19.95 collection + £39.95 recycling | Mattress protector mandatory | Exchange |
| Dreams (where Hypnos stocked) | 100 nights (min 30 before swap) | £95 | Protector required, perfect condition | Exchange only, no refund |
| Bensons for Beds | None advertised on Hypnos | n/a | n/a | Statutory only |
| Independent retailers | Varies, typically 0-30 days | Varies | Varies | Varies |
How Hypnos’s Guarantee Compares to Other UK Mattress Brands
Hypnos’s 10-year guarantee sits in the middle of the UK premium pack. Vispring offers 30 years (with strict 14-day registration), Tempur and Emma also offer 10, Sealy offers 7, and Silentnight offers 5. Where Hypnos lags is on sleep trials, where Emma and Simba both offer 200 nights direct.
| Brand | Guarantee Length | Sleep Trial | What’s Covered | Registration Required? | Claim Process |
|---|---|---|---|---|---|
| Hypnos | 10 years | None direct | Materials & workmanship | Yes — within reasonable time | Via supplying retailer |
| Vispring | 30 years | None direct | Materials & workmanship | Yes — 14 days | Via supplying retailer |
| Tempur UK | 10 years | Via stockist | Defects + 2cm indentation | No | Direct or retailer |
| Emma | 10 years | 200 nights | Materials & workmanship | No | Direct |
| Simba | 10 years | 200 nights | Materials & workmanship | No | Direct |
| Sealy UK | 7 years | Via stockist | Materials & workmanship | No | Via retailer |
| Silentnight | 5 years | None direct | Materials & workmanship | No | Online claim portal |
| John Lewis (most) | 7 years | 60 nights | Materials & workmanship | No (auto via account) | Via John Lewis |
vs Vispring (30-year)
Vispring triples Hypnos on paper, but with a brutal 14-day registration window and the same handcrafted, retailer-distributed model. Our Hypnos vs Vispring breakdown weighs that trade-off in detail.
vs Tempur (10-year, 2cm threshold)
Same length, but Tempur publishes a 2 cm indentation threshold, the lowest in the UK premium market. Hypnos doesn’t publish a number, which cuts both ways.
vs Emma (10-year + 200-night trial)
Same guarantee length, but Emma adds a 200-night trial with free collection, and the mattresses themselves are quite different products, as our Hypnos vs Emma comparison spells out side by side.
vs Simba (10-year + 200-night trial)
Mirrors Emma. Hybrid construction, full trial, full refund. Comfort risk transferred entirely to the retailer.
vs Silentnight (5-year)
Half the length of Hypnos with the same 18-stone-per-side cap, and you can read the full head-to-head in our Hypnos vs Silentnight comparison.
vs Sealy (7-year UK)
Three years shorter, claims handled via retailer, similar exclusion language.
vs John Lewis own-brand (mostly 7-year)
Most John Lewis own-brand mattresses carry a 7-year guarantee with auto-registration on purchase, plus the 60-night trial.
Verdict: where Hypnos sits
Strong on guarantee length (top quartile), weak on direct sleep trial (bottom quartile). The right retailer choice fixes the second problem.
Citation capsule: Hypnos’s 10-year guarantee matches Tempur, Emma and Simba on length but lacks a direct sleep trial. Vispring’s 30-year guarantee leads the UK market but voids without 14-day registration (Vispring). Tempur publishes the lowest sag threshold at 2 cm (Tempur UK).
Your UK Consumer Rights Act 2015 Protection (On Top of the Guarantee)
The Consumer Rights Act 2015 sits on top of any manufacturer guarantee and gives you a 30-day right to reject faulty goods for a full refund Source: legislation.gov.uk. In the first six months, faults are presumed by law to have existed at purchase, with the burden of proof on the retailer Source: Which?.
30-day right to reject
If the mattress is faulty within 30 days of delivery, you can reject it and demand a full refund. Not an exchange, not store credit, a refund. This sits separately from any sleep trial. A faulty product and a product you simply don’t like are different legal categories.
The 6-month presumption
For the first six months, if a fault appears, it’s presumed to have been there from day one unless the retailer can prove otherwise. This shifts the evidential burden away from you. You don’t have to prove the spring was always going to snap. They have to prove your usage caused it.
After 6 months — repair/replace/partial refund
After six months, the burden flips. You’ll likely need an independent inspection report to prove an inherent fault. The retailer can offer one repair or one replacement before you’re entitled to ask for a refund or partial refund. Inherent-fault claims can be brought up to 6 years from purchase in England/Wales (5 in Scotland).
Why your rights are against the retailer, not Hypnos
The Consumer Rights Act binds the seller, not the manufacturer. Your contract is with whoever took your money. That’s why we always tell readers: pursue the retailer first, then Hypnos under the manufacturer guarantee, then external bodies if both fail.
What to do if the retailer goes out of business
You can claim against Hypnos directly under the manufacturer guarantee. If you paid £100 or more on a credit card, Section 75 of the Consumer Credit Act 1974 makes the card issuer jointly liable, which is often the fastest route to a refund.
Escalating to the Furniture & Home Improvement Ombudsman or small claims court
If the retailer is a member of FHIO or BedFed, free dispute resolution is available. Small claims is the next step. UK small claims court fees scale from £25 (claims up to £300) to £410 (claims up to £10,000) Source: Which?.
Frequently Asked Questions
What does Hypnos’s 10-year guarantee actually cover?
Manufacturing defects, both workmanship (how the mattress was put together) and material failure (springs, foam, fillings). It’s a “make good or replace” promise on things Hypnos got wrong, not a comfort or longevity guarantee. Body impressions under 1.5 inches, stains, and unsuitable bases are excluded (GoodBed).
Does Hypnos offer a sleep trial?
No, not directly. Trials sit with each retailer. MattressNextDay offers 100 nights, John Lewis 60, Dreams 100 (exchange only), while Bensons and hypnosbeds.com rely on the manufacturer guarantee plus statutory rights. The Consumer Rights Act still gives you 30 days to reject a faulty mattress (legislation.gov.uk).
Can I get a refund if I don’t like my Hypnos mattress?
It depends on the retailer. The manufacturer doesn’t offer comfort refunds. Your best route is a retailer with a sleep trial. MattressNextDay’s 100 nights is the most generous on Hypnos, with a £99 swap fee and a 50-night minimum sleep period (MattressNextDay).
What voids the Hypnos guarantee?
Stains of any kind, an unsuitable base (slats wider than 7 cm), exceeding 18 stone (114 kg) per sleeping side, ignoring care instructions, willful damage, or selling the mattress on. The guarantee is not transferable. Hygiene exclusions catch most rejected claims, roughly 25% of UK warranty rejections cite stains.
How do I register my Hypnos guarantee?
Online at hypnosbeds.com/care/registration, or by post to Hypnos Limited, Princes Risborough, Buckinghamshire HP27 9RS. Have your retailer name, delivery date, model name and proof of purchase ready. Photograph the law label sewn into the side seam, that’s where the serial number lives. Save digitally.
Is the Hypnos guarantee transferable if I sell my mattress?
No. The guarantee is tied to the original purchaser and ends when the mattress changes hands. The same applies if you give it to family or sell it secondhand. The new owner has no claim against Hypnos and no Consumer Rights Act claim, since they didn’t buy from the retailer.
What if my Hypnos retailer goes out of business?
You can claim against Hypnos directly under the manufacturer guarantee. Consumer Rights Act protections may also shift to your credit card issuer under Section 75 if you paid £100 or more on credit. The Furniture & Home Improvement Ombudsman can help if the retailer was a member before closure.
Can I extend the Hypnos guarantee beyond 10 years?
No paid extension is offered. After 10 years, Consumer Rights Act protection can extend up to 6 years from purchase in England and Wales (5 in Scotland) for inherent faults that took time to manifest, but you’ll need strong evidence the fault existed from the start.
How long does a Hypnos warranty claim take?
Realistic expectation is 4 to 8 weeks: 1 to 2 weeks for initial review, 2 to 4 weeks for inspection scheduling and report, and 1 to 2 weeks for resolution. Disputed claims can run several months. Citizens Advice saw home-improvement complaints rise sharply in 2025 (Insight DIY).
Do I have rights beyond the Hypnos guarantee?
Yes. The UK Consumer Rights Act 2015 sits on top of any manufacturer guarantee. You get a 30-day right to reject, a 6-month presumption of inherent fault, and up to 6 years to bring a claim. These rights are against the retailer, not Hypnos (Which?).
The Bottom Line — Is Hypnos Coverage Strong Enough?
Hypnos’s 10-year guarantee is solid on length but narrow on scope, with no direct sleep trial. The Consumer Rights Act 2015 sits on top and gives you genuine teeth against the retailer. Register on day one, use a waterproof protector, follow care instructions, and pick a retailer with a real trial if comfort certainty matters.
If trial flexibility matters, our best current Hypnos deals favours retailers like MattressNextDay where you can return or exchange without the headache. For the full hands-on take, see our full Hypnos mattress review.
