January is two sales in one month
The first 2 weeks are the Boxing Day sale with a new name over the door. Stock carries over, cuts carry over, and only the banner changes with the date. Our Boxing Day page covers the earlier half of that same run and shuts on 5 January, where this page takes over.
Then the month changes character. Clearance thins out as the end-of-line pieces go, and shops start pushing current ranges instead, sometimes with fresh codes attached. So the last 2 weeks are a poorer time for a bargain and a better one for choice.
When are the January mattress sales?
From New Year's Day to the end of the month: we track 1 to 31 January 2027. New Year's Day 2027 is a Friday, so you get a long opening weekend, and the adverts usually restart then.
The retailers behind the January sales
Bed specialists and furniture chains, mainly. Direct brands are there all month, though January isn't a distinct event for them the way it is for a showroom. Everything live sits in the table above.
Simba January sale 2027 codes show up in that table and on Simba's own promo codes page. Their promo page holds the full set, January-tagged or not, and that counts double this month: a code running since mid-December is often the better one, and it won't carry a January label.
The "was" price question in January
January is the month when reference prices deserve your closest look, for a reason that's simple arithmetic. By the third week, a mattress advertised as reduced may have sat at its sale price for over a month. Fair question, then, which of the two figures is the selling price.
The CMA's mattress-pricing principles, dated 1 August 2024, set out a duration test along those lines. A "was" price should have been offered for a long enough period right before the discount begins. Its publication page now carries a 30 July 2026 notice putting the guidance on hold while the CMA considers a High Court judgment. That isn't legal advice. It won't say whether your price is good either. As a test you can apply yourself, it's still the right one.
Direct brands make the point better than any regulator
One Which? check found direct-brand mattresses that never came off sale, some past their own advertised end dates. So a New Year banner tells you nothing you didn't already know in October. Their promo codes pages carry what each of them has live right now.
Wait for the end of the month?
No, and it's the one seasonal question with a clean answer. In most shops a January cut is already the Boxing Day cut, so the last week of the month gives you the same price from a thinner range. When the mattress you want is reduced on the 4th, sitting out the rest of the month gains you nothing.
One reason to hold on survives all that. Say your old mattress is merely tired, not finished, and you can live with it until late November. Aim at Black Friday, the one stretch when the showrooms and the direct brands are cutting prices together, so comparing is easy. That's a 10 month wait, mind, and it only makes sense while you're comfortable now.
What's worth checking on a January deal?
Ask how long the price has been running before anything else. Any cut that started on 26 December and is still going on 20 January isn't a new offer, however fresh the banner looks.
Delivery is the next thing to pin down. A Christmas backlog is still clearing, so the date on the product page is an estimate until it's confirmed. Trial length counts too. Delivered in February, a bed is still inside its trial in March. It's the check most people skip. And whether the model is current or being run out decides whether you could ever buy a matching second one.
If you're furnishing a new place and buying several beds at once, this is a poor month to do it in one order. Clearance quantities in matching sizes are exactly what January's run out of. Our top mattress picks don't move with the calendar, and they make a useful cross-check in a month like this.
Why a stale cut stops showing
Any cut that's been running since Boxing Day fades out of our price-drop cards, because a drop is measured against the last 30 days of prices in our own record. Dates, codes and what we refuse to print are covered once, in how these pages get put together.
Sources
- GOV.UK, UK bank holidays, for the date New Year's Day falls on in 2027. https://www.gov.uk/bank-holidays
- CMA, pricing principles for online mattress sellers and the duration test they set, 1 August 2024, withdrawal notice 30 July 2026. https://www.gov.uk/government/publications/discount-and-reference-pricing-principles-selling-mattresses-online
- Which?, February 2024 check on direct-to-consumer mattress prices. https://www.which.co.uk/news/article/which-urges-popular-mattress-companies-to-play-by-the-rules-aeIV45u7pHws
January Sales questions
Do the January sales start on 1 January?
Only the adverts do. Stock has mostly been reduced since the week before Christmas. We track the month from the 1st to the 31st, and our sales calendar shows where that sits. Treat the 1st as a relaunch, not a start: the range you'd have seen on 27 December is what's still there, minus whatever sold over the holiday.
Has this price been running since Boxing Day?
Very often, yes, and it's the first thing to find out. Sales simply roll over from 26 December, so a "January sale" price on the 20th could be a month old. A winter-long sale price also fails the duration test in the CMA principles covered above: if the sale price is the only price the mattress has had all winter, the crossed-out figure is telling you nothing.
Which retailers run January mattress sales?
Bed specialists and furniture chains run the biggest. Department stores are in it early and drop out as their clearance empties. Direct brands are there too, though a January code at a brand that's on sale most of the year is a smaller event than the same code at a showroom chain, where the price will go back up in February. The two aren't the same offer: the showroom cut has a shelf life, while the direct-brand one mostly doesn't.
What should I check on a mattress delivered in February?
Your trial and return windows, because both normally run from delivery and not from the day you paid. Order in January, get it in February, and you've the whole of March to make your mind up, and that's more useful than it sounds on a bed you're unsure about. Check the guarantee start date too. Some retailers date it from purchase, and on a long lead time that costs you weeks of cover.
