Buying a mattress online can feel like a gamble. You can read specifications, compare firmness ratings and look at photographs, but none of these tells you exactly how the mattress will feel after several nights in your own bedroom.
That is why mattress sleep trials have become an important part of buying a bed in the UK. Some brands offer 60 nights, others offer 100 or 200 nights, and a few advertise a full 365-night trial.
However, the number of nights is only one part of the offer.
A 200-night trial does not automatically mean a full refund, free collection or the freedom to return a mattress in any condition. Some retailers offer a refund, while others provide an exchange for a different mattress. You may also have to purchase and use a mattress protector from the first night.
This guide compares the policies of several UK mattress retailers and explains what you should check before placing an order.
Policy check date: 3 November 2026. Retailers can change their terms, so confirm the current conditions on the product page and at checkout before purchasing.
Mattress Sleep Trial Comparison: UK Retailers
| Retailer or brand | Advertised trial | What happens if you do not like it? | Important conditions |
|---|---|---|---|
| Emma, purchased direct | 200 nights | Full refund with collection arranged | Trial starts on receipt. Collection restrictions apply to some postcode areas. |
| Simba, purchased direct | 200 nights | Full refund with collection arranged | Free returns, but premium delivery charges are not refunded. Refurbished mattresses have a shorter trial. |
| Nectar, purchased direct | 365 nights | Refund after the qualifying return | 30-day adjustment period, clean and undamaged condition, and the fire-safety verification tag must remain attached. |
| Dreams | 100 nights | Exchange for another mattress | Minimum 30 nights, protector required from day one and £95 collection and re-delivery charge. |
| MattressOnline | 100 nights on eligible models | Exchange for another mattress | Minimum 30 nights, protector purchased with the mattress and £49 exchange delivery fee. |
| Soak & Sleep | 100 nights | Return for a refund | Minimum 30 nights, protector required and mattress must remain clean and unmarked. |
| John Lewis, selected own-brand mattresses | 60 nights | Exchange for another mattress | Minimum 30 nights, protector purchased in the same transaction and £59.90 combined collection and recycling charge. |
These offers are not directly interchangeable. Some apply to mattresses bought from the brand itself, while others are retailer-specific schemes. A mattress carrying the same brand name may have different return conditions when purchased from another shop.
1. Emma: 200-Night Mattress Trial
Emma advertises a 200-night trial on its mattresses purchased through its UK website. The company says customers can try the mattress at home and request a return if it is not suitable.
According to its published policy, Emma arranges collection through its returns partner and provides a full refund after the returned product has been collected and processed. The company advises allowing up to 14 days for the refund process after collection and processing.
The trial begins on the day you receive your order, not the day you first decide to sleep on the mattress.
What should you check?
- Confirm that the exact mattress is eligible for the 200-night offer.
- Check the delivery date shown on your order confirmation.
- Read the current collection arrangements for your postcode.
- Check how free gifts or promotional bundle items are treated if you return the mattress.
- Keep your order confirmation and the returns instructions.
Emma's help information identifies some postcode areas where its normal collection arrangements are restricted. If you live in a remote or island location, check collection availability before purchasing rather than assuming the standard service applies everywhere.
2. Simba: 200 Nights with Free Mattress Collection
Simba also advertises a 200-night trial for new mattresses purchased under its own trial terms. Its published help information says that the trial also applies to new bed bases and toppers.
One useful feature is that Simba says you do not need to keep the mattress wrapped in its original plastic during the trial. You can use it normally in your bedroom.
If you decide it is unsuitable, Simba arranges a courier to collect it. The company says returns are free and that the returned product may be recycled or donated as appropriate.
There is an important distinction concerning delivery charges: premium delivery charges are not refunded under the published policy. If you used a promotion or bundle offer, check its terms because this may affect the final refund.
What about refurbished Simba mattresses?
Do not assume that every Simba mattress has the same trial period. The published help page specifies a 30-night trial for refurbished mattresses rather than the 200 nights offered on new eligible products.
That difference is worth checking if you are considering a refurbished model to save money.
3. Nectar: 365-Night Mattress Trial
Nectar advertises a 365-night trial, giving customers a full year to decide whether the mattress is right for them.
The first 30 days are treated as an adjustment period. Nectar explains that a person may need time to become accustomed to a new mattress, so an opened mattress can generally be considered for return after this initial period, subject to the published conditions.
What happens if you return a Nectar mattress?
Nectar's published policy says that the mattress must be clean and undamaged, with no stains or tears. Its terms also require the fire-safety verification tag to remain attached.
The company asks customers to provide photographs showing the condition of the mattress before the trial period expires. It also states that the return request and collection process must be completed within the applicable trial window.
Nectar advertises free mattress returns, but do not overlook the financial details. Its terms allow deductions relating to promotional discounts, previous refunds, room-of-choice delivery and mattress removal services.
For example, if you paid for an optional service to have your old mattress removed, that charge may not be refundable after the service has been completed.
Another point worth understanding is that Nectar does not describe its standard trial as a direct mattress-for-mattress exchange. Its published terms explain that the unwanted mattress is returned and refunded before a customer purchases an alternative.
4. Dreams: 100-Night Comfort Guarantee
Dreams offers a 100-night Comfort Guarantee for eligible mattresses. Unlike the refund-style offers from some online brands, this is primarily an exchange arrangement.
If you are unhappy with the comfort of your mattress, Dreams allows you to select an alternative between nights 30 and 100, provided you meet the conditions.
The mattress protector requirement
Dreams requires customers to use a mattress protector from the first day of delivery. The returning mattress must remain in good condition. The company reserves the right to refuse an exchange if the mattress is marked, soiled or has not been protected properly.
This is not a condition to discover after 80 nights. If you want to use the guarantee, arrange the protector before the mattress arrives.
How much does an exchange cost?
Dreams currently lists a £95 collection and re-delivery charge for an exchange under this guarantee.
If you select a more expensive mattress, you must pay the difference. If you choose a cheaper replacement, the difference is provided as Dreams vouchers rather than a cash refund.
The published terms also limit the offer to one exchange per order. Blue-cross and ex-display mattresses are excluded, and the guarantee does not apply to bed frames, divans or adjustable and ottoman bases.
Therefore, a 100-night guarantee at Dreams should not be interpreted as 100 nights to obtain a full cash refund.
5. MattressOnline: 100-Night Comfort Trial
MattressOnline offers a 100-night Comfort Trial on eligible standalone mattresses purchased through its website and delivered within the UK.
The main condition is that you must purchase a mattress protector from MattressOnline at the same time as the mattress and use it from the first night throughout the trial.
You must also sleep on the mattress for at least 30 nights. The exchange must be arranged within the permitted period, which is no more than 100 nights from delivery.
Is it a refund or an exchange?
The published Comfort Trial is an exchange scheme rather than a general cash-refund promise.
MattressOnline lists a £49 delivery fee for exchanges. The replacement mattress must be the same size as the original purchase.
If the replacement is more expensive, you pay the difference. If it is cheaper, the policy has restrictions on how much difference may be returned as website credit. In some circumstances, no refund or credit is provided.
The offer is also limited to eligible standalone mattresses. Mattresses supplied as part of folding beds, sofa beds or other mechanisms are excluded under the published terms.
6. Soak & Sleep: 100-Night Mattress Trial
Soak & Sleep advertises a 100-night trial on new mattress purchases.
The customer must use the mattress for at least 30 days before deciding whether it is unsuitable. A mattress protector must be used throughout the trial.
The company says that it cannot accept a trial return if the mattress is marked, misused or dirty, or if the required protector has not been used.
Its published policy says that refunds are processed within 10 working days after the returned mattress has been received.
One detail I would check before ordering is the collection or return-service cost. The policy page examined explains the return conditions and processing time, but the collection cost was not clearly stated in the accessible information. Ask the retailer to confirm the total cost of returning a full-size mattress before completing your purchase.
7. John Lewis: 60-Night Sleep Comfort Trial
John Lewis offers a 60-night Sleep Comfort Trial on most qualifying own-brand mattresses.
The scheme is designed to let customers try the mattress at home and exchange it if the comfort is not right.
To qualify, you must purchase a mattress protector in the same transaction as the mattress and use it throughout the trial. John Lewis recommends sleeping on the mattress for at least 30 nights before requesting an exchange.
What does an exchange cost?
The published combined charge is £59.90, made up of:
- £19.95 for collection and delivery.
- £39.95 for recycling the returned mattress.
The trial is an exchange arrangement, not a general cash-refund offer for a mattress that simply does not feel right.
Some products are excluded, including John Lewis Open Spring mattresses, divan bases, reduced-to-clear mattresses, ex-shop-floor display models and outlet mattresses.
John Lewis also notes that some third-party brands sold through its website may have their own separate trial arrangements. Always check the product page to see which terms apply to the mattress you are buying.
What Is the Difference Between a Mattress Trial and a 14-Day Online Return Right?
This is an important distinction because the two arrangements are often confused.
A mattress sleep trial is a voluntary commercial offer from a retailer or manufacturer. Its length, refund arrangements, exchange fees and eligibility conditions depend on the published policy.
The 14-day cancellation right for many online purchases comes from consumer law. It is not the same as a 100-night or 200-night mattress trial.
Buying a mattress online
Under the Consumer Contracts Regulations, customers generally have 14 days from receiving an online, mail-order or telephone purchase to notify the seller that they wish to cancel. They then have another 14 days to return the goods.
The seller must normally refund the standard delivery cost as well as the purchase price. A more expensive delivery option does not necessarily have to be refunded in full. The customer may also be responsible for the cost of returning the item if the retailer has provided the required information about return costs.
There are important qualifications. If you handle an item beyond what would be reasonable to inspect it, the retailer may be able to deduct for diminished value. There is also an exception for certain sealed goods that are unsuitable for return for health or hygiene reasons once unsealed.
Do not assume that the 14-day cancellation right gives you permission to sleep on any mattress for two weeks and return it automatically. The application of the hygiene exception and the condition of the goods can matter.
Buying a mattress in a physical shop
If you purchase a mattress in a showroom and simply change your mind later, there is generally no automatic legal right to return it just because you dislike the comfort.
The retailer may offer its own comfort guarantee or exchange policy, but you should ask about it before paying.
This is one reason why checking the return conditions in writing is particularly important when buying from a physical bed shop.
What if the mattress is faulty or arrives damaged?
A faulty, damaged or incorrectly described mattress is a different matter from a mattress that simply does not suit your comfort preference.
Your statutory consumer rights are separate from a voluntary sleep trial. A retailer cannot use a comfort-trial policy to remove rights that apply when goods are faulty or not as described.
If your order arrives damaged, late or incorrect, follow the appropriate reporting process rather than treating it as a comfort-trial return. Our guide to dealing with a damaged, late or incorrect bed delivery explains what information to record and how to approach the retailer.
Why a 200-Night Trial Is Not Always Better Than a 60-Night Trial
It is tempting to choose the mattress with the largest number of trial nights. However, this can be misleading.
Consider two different offers:
- Retailer A gives you 200 nights but requires you to pay for collection or offers only an exchange.
- Retailer B gives you 60 nights but provides a straightforward refund and free collection.
Which is better depends on what you want to happen if the mattress is unsuitable.
If you want the option to recover your money, look for a refund-based trial. If you are comfortable choosing another mattress from the same retailer, an exchange scheme may be perfectly acceptable.
Also consider whether the retailer offers a free collection service, whether delivery charges are refundable, and whether promotional gifts or discounts affect the amount you receive.
What Should You Check Before Buying a Mattress with a Sleep Trial?
Before paying, work through these questions rather than relying on the large trial-period badge displayed on a product page.
1. Is the offer a refund or an exchange?
This should be the first question. A 100-night exchange is not the same as a 100-night money-back guarantee.
2. When does the trial start?
Many policies begin on the delivery date. Check whether the clock starts when the order is placed, dispatched, delivered or collected from a shop.
3. Is there a minimum settling-in period?
Several retailers require customers to use the mattress for at least 30 nights before making an exchange or return request under their voluntary trial.
Make sure you know the earliest date on which you can submit a request and the final date by which the retailer must receive it.
4. Must you buy a mattress protector?
Some policies require a protector to be purchased in the same transaction and used from the first night. Others simply require the mattress to remain clean and undamaged.
Do not assume that buying a protector several weeks later will satisfy a condition requiring it from delivery.
If you are unsure which type of covering to buy, read our guide explaining the difference between a mattress protector and a mattress topper.
5. How much does collection cost?
A mattress is bulky and difficult to transport. A return that looks free at first may have a collection fee, a recycling charge or a delivery fee for the replacement mattress.
Ask for the total cost in pounds before purchasing. If the retailer uses separate collection and recycling charges, add them together.
6. Are promotional gifts and discounts affected?
Some retailers adjust refunds when an order includes a promotional discount, free gift or bundle offer. Check whether returning the mattress means you must also return the promotional items or lose the value of the discount.
7. Does the trial apply to your exact mattress?
Clearance products, ex-display mattresses, refurbished models, special sizes and mattresses purchased through third-party retailers may have different conditions.
Never rely on a general brand advertisement if the product page or checkout terms show a different offer.
8. Does your bed base meet the mattress requirements?
A mattress may need a particular type of base or slat spacing. Using an unsuitable base could affect the mattress's support and may also cause problems with a warranty or trial claim.
Before ordering, check our guide to using a new mattress on an existing bed base.
How to Test a New Mattress During the Trial Period
A sleep trial is most useful when you pay attention to how the mattress performs in everyday use.
Rather than deciding after one uncomfortable night, keep a simple record during the first few weeks.
| What to assess | What to notice |
|---|---|
| Initial comfort | Does the mattress feel comfortable when you first lie down? |
| Pressure points | Do your shoulders, hips or other areas feel uncomfortable? |
| Sleeping position | Does the mattress suit the way you normally sleep? |
| Temperature | Do you regularly feel too warm during the night? |
| Movement | Does your partner's movement disturb you? |
| Edge support | Does the mattress feel stable when you sleep or sit near the edge? |
| Noise | Do you notice unwanted creaking or other sounds? |
| Getting in and out | Is the mattress height and firmness comfortable for your everyday routine? |
Use the mattress as intended and follow the manufacturer's care instructions. If the policy requires a protector, use it from the first night.
Also avoid changing several things at once. If you add a thick topper, change your pillow and alter your bed base during the trial, it becomes harder to judge whether the mattress itself is suitable.
What Happens to Mattresses Returned During a Sleep Trial?
Customers sometimes worry about whether a returned mattress simply goes to landfill.
Different companies describe different arrangements. Some say they donate qualifying returned mattresses, while others use recycling or refurbishment routes depending on the product's condition.
For example, Simba says returned mattresses may be recycled or donated as appropriate. Nectar describes a donation process, subject to the condition and eligibility of the returned mattress.
Do not assume that every returned mattress will be donated or resold. Hygiene, damage, condition and local collection arrangements can affect what happens to an individual item.
Frequently Asked Questions
Can I return a mattress after sleeping on it?
Yes, if the retailer's sleep-trial policy allows you to use the mattress at home and you meet its conditions. Without an applicable trial, an opened or used mattress may not qualify for a change-of-mind return. Your separate rights for faulty or incorrectly described goods still apply.
Is a 100-night mattress trial a full refund?
Not necessarily. Some 100-night offers provide a refund, while others allow only an exchange. Dreams and MattressOnline, for example, describe exchange-based schemes with additional conditions and charges.
Do I have to use a mattress protector during a sleep trial?
It depends on the retailer. Dreams, John Lewis, MattressOnline and Soak & Sleep all specify protector requirements in their published trial conditions. Check whether it must be purchased with the mattress and used from the first night.
Can I return a mattress during the first 30 nights?
Some retailers require you to complete a 30-night adjustment period before using their voluntary comfort guarantee. Others have different conditions. Check the exact terms rather than assuming every trial works the same way.
Can I return a mattress bought in a showroom?
You can use a showroom's comfort guarantee if the mattress qualifies under its policy. However, simply changing your mind after an in-store purchase does not normally create an automatic right to return a non-faulty mattress.
Do mattress trials apply to sale or clearance products?
It depends on the retailer's commercial offer. Some trials exclude outlet, ex-display or reduced-to-clear products. Your statutory consumer rights are not removed simply because you purchased an item in a sale, but the conditions of a voluntary trial may have product exclusions.
Do I need to keep the original mattress box?
Not always. Some companies arrange collection without requiring the original packaging, while others may have particular packaging or protection requirements. Check the return instructions before throwing away the packaging.
Is a mattress warranty the same as a sleep trial?
No. A sleep trial is intended to let you assess comfort under the retailer's conditions. A warranty or guarantee generally covers specified defects or manufacturing issues. Read our UK mattress warranty guide to understand what a warranty may and may not cover.
What if I buy a mattress from a retailer instead of the brand's own website?
Check the retailer's terms. A manufacturer's direct-to-consumer trial does not automatically apply to every purchase made through a department store, marketplace or independent retailer. The product page and your order confirmation should identify the applicable offer.
Before You Place Your Order: Mattress Trial Checklist
- Confirm the exact trial length for your chosen mattress.
- Check whether the offer provides a refund or an exchange.
- Find out when the trial starts and when it ends.
- Check whether you must use a mattress protector from day one.
- Calculate collection, recycling and replacement delivery charges.
- Check exclusions for clearance, refurbished and special-size products.
- Confirm whether promotional gifts or discounts affect refunds.
- Make sure your existing bed base is suitable for the mattress.
- Keep your order confirmation and a copy of the applicable trial terms.
- Record the final date by which you must request a return or exchange.
The most useful mattress trial is not necessarily the one with the highest number of nights. It is the offer that gives you the right type of return, reasonable conditions and a collection arrangement you can actually use.
Before buying, compare the complete policy rather than the headline number. A clear refund arrangement with manageable return costs may be more valuable to you than a much longer trial that only allows an expensive exchange.
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