Last updated: October 2026
Black Friday is the biggest mattress sale of the year in the UK, and it is also the week most people buy the wrong one in a hurry. This guide covers the dates, how mattress deals actually work, what to check before you order, and how to compare offers so the saving is real.
Quick answer: Black Friday 2026 is Friday 27 November, with Cyber Monday on 30 November. Most mattress retailers start their sales a week or more early and run them through the weekend. The best approach is to decide the size and firmness you need now, check the trial, guarantee and delivery terms before you look at the price, and compare the final price you pay rather than the headline discount.
When is Black Friday 2026?
Black Friday is always the day after American Thanksgiving, which puts it on Friday 27 November 2026. Cyber Monday follows on Monday 30 November.
In practice, the sale period is longer than one day. Most UK mattress brands open their Black Friday offers in the week before, some as early as mid-November, and keep them running through Cyber Monday and often into the first days of December. The strongest offers and the widest stock are usually in the days around Black Friday itself.
How Black Friday mattress sales really work
Mattresses are one of the most heavily promoted categories over Black Friday, and the deals fall into a few patterns:
- A percentage off the full price. The most common offer. Worth checking what the "full price" was in the weeks before, since some retailers raise it ahead of the sale so the discount looks bigger.
- Bundles. A pillow, protector or bedding included with the mattress. Good value if you needed those anyway, less so if you would never have bought them.
- Free upgrades. Free delivery, free old mattress removal, or an extended trial. These are often worth more than a small price cut.
- Clearance. Older models or discontinued sizes at a lower price. Fine if the specification suits you, but check the guarantee length is the same.
At REM-Fit, Black Friday is our biggest sale of the year. We do not run permanent discounts or inflate prices beforehand, so when the Black Friday price appears it is a real reduction on what the mattress sold for the week before.
What to check before you buy: 4 things that matter more than the discount
- The sleep trial. A mattress bought in a sale is still a mattress you have to sleep on for years. Make sure there is a proper at-home trial and read how returns work: who collects it, whether there is a collection fee, and whether you get a refund or only an exchange. REM-Fit mattresses come with a 100-night trial, extended to 200 nights when you add a mattress protector, and that applies to Black Friday orders in exactly the same way.
- The guarantee. Look for the length and what it covers. A guarantee against sagging and manufacturing faults is the one that matters. REM-Fit hybrids carry a 15-year guarantee, sale or no sale.
- Delivery. Black Friday is the busiest delivery window of the year. Check the lead time before you order, whether delivery is free, whether it is to the room of choice or the front door, and whether old mattress removal is available. If you need the mattress before Christmas, order early in the sale rather than at the end.
- Stock in your size. Popular sizes sell through first. If you need a king or super king, do not leave it until Cyber Monday.
How to compare Black Friday mattress deals
Headline percentages are designed to be compared, which is exactly why they mislead. Compare these instead:
- Final price for your size. A bigger percentage off a higher starting price can still cost more. Write down the price you would actually pay for the size you need.
- Construction. Spring count, foam type and depth tell you more than the brand name. A hybrid with a pocket spring core and open-cell foam will outlast and sleep cooler than a cheap all-foam mattress at the same sale price.
- Firmness for how you sleep. Side sleepers usually want medium, back and front sleepers firmer. The sale does not change that. Our mattress firmness guide explains how to choose.
- Price history. If a mattress has been "50% off" all year, Black Friday is not a saving. Brands that sell at an honest price year-round tend to offer smaller but real reductions.
- What is included. Add up delivery, removal and any bundled extras before you compare two totals.
Decide what you want before the sale starts
The single best way to buy well on Black Friday is to do the thinking in advance. Before the offers go live:
- Measure the bed base and confirm the size you need.
- Decide on firmness based on sleeping position and body weight, not price.
- Shortlist two or three mattresses and note their normal prices now, so you can see what the sale price really saves.
- Check the trial, guarantee and delivery terms for each.
- When the sale starts, buy the one that was already right. Do not switch to a different mattress because its discount looks larger.
The full REM-Fit hybrid mattress range is rated by tension from medium through to orthopaedic firm, so you can match the feel to how you sleep before the sale and then simply buy it at the Black Friday price.
✓ 100-night trial, extended to 200 nights with a mattress protector ✓ 15-year guarantee ✓ Free UK delivery ✓ 0% finance
Frequently asked questions
When do Black Friday mattress deals start in 2026?
Black Friday itself is 27 November 2026. Most mattress retailers start their offers in the week before, and many run them through to Cyber Monday on 30 November or beyond.
Is Black Friday the best time to buy a mattress?
For most brands, yes. It is typically the biggest sale of the year, and stock is at its fullest ahead of Christmas. The January sales are the other main window, but choice is usually narrower.
Do mattress trials still apply to Black Friday purchases?
At REM-Fit, yes. The 100-night trial (200 nights with a mattress protector) and the 15-year guarantee are the same whether you buy in the sale or at full price. Check this with any retailer before you order, as some exclude clearance or sale items from returns.
Should I wait for Cyber Monday instead?
Rarely worth it for a mattress. Cyber Monday offers are usually the same as Black Friday, and by then popular sizes may have sold through. If you have found the right mattress at a good price, buy it.
How do I know if a Black Friday mattress discount is genuine?
Check the price in the weeks before the sale, either by noting it yourself or using a price tracking site. A genuine deal is a reduction on the price the mattress normally sells for, not on an inflated "was" price that nobody paid.
