30%
Discount
Discount code
Save 30% during the Wool Event
✓ Checked 02/10/2026 · No end date
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Slumberdown discount codes & offers As of 2 October 2026
Slumberdown is a British bedding brand owned by the John Cotton Group, a family-run textile business established in 1916 with its head office in Mirfield, West Yorkshire, which also owns Snuggledown. Slumberdown says its products are designed and made in the UK, and that its pillows and duvets are made at the Mirfield head office. It sells duvets, pillows, protectors and mattress toppers through slumberdown.co.uk with free standard delivery.
How we check codes
1 offer listed, last checked on 02/10/2026
How-to
How to redeem the code
1. Copy the code
Tap ‘Show code’. The code is revealed and copied to your clipboard.
2. Shop at the retailer
Add your product to the basket and go to the checkout.
3. Redeem the discount
Paste the code into the ‘Discount code’ field. The discount appears in the total straight away.
The brand
Slumberdown at a glance
Slumberdown (Topper) is one of the brands whose offers and discount codes we check on an ongoing basis at Sleep Magazine. Current offer: Save 30% by using code TWWE.
| Origin | United Kingdom |
|---|---|
| Delivery | Free standard UK delivery |
| Compared | 1 product |
| Live offers | 1 |
Background
About Slumberdown
Slumberdown is a British bedding brand from the John Cotton Group, a family-run textile business that says it was established in 1916 and makes its pillows and duvets at its head office in Mirfield, West Yorkshire, according to the Slumberdown about page. Companies House lists John Cotton Group Ltd, a maker of non-woven textiles, as incorporated on 1 March 1933 under its earlier name John Cotton (Mirfield) Limited. Slumberdown sells duvets, pillows, mattress protectors, mattress toppers and heated throws, mostly with synthetic fillings, and Snuggledown is its sister brand.
Mattress toppers on slumberdown.co.uk
Slumberdown’s shop listed ten mattress toppers in September 2026, nine of them synthetic or foam and one filled with British wool. Prices are for the smallest size sold.
| Topper | Depth | Filling (Slumberdown) | From |
|---|---|---|---|
| Sleep Soundly Rebound | Not stated | Hollowfibre, anti-slip underside | £20.70 |
| Sleep Soundly Climate Control | Not stated | Dacron temperature-regulating hollowfibre | £20.70 |
| Sleep Soundly Anti Allergy | Not stated | Anti-allergy treated hollowfibre | £20.90 |
| Sleep Soundly 2.5cm | 2.5cm | Hollowfibre, wave-quilted microfibre cover | £22.80 |
| Sleep Soundly 5cm | 5cm | Synthetic fibre, quilted cover | £27.50 |
| Sleep Soundly 10cm Extra Deep | 10cm | Hollowfibre, box-quilted microfibre cover | £30.20 |
| Breathable Airstream | 4cm | Airstream fibre, removable knitted cover | £46.20 |
| Memory Fibre Airstream | 4cm | Airstream fibre, Coolmax knitted cover | £53.60 |
| Wonderful Wool | Not stated | 200gsm British wool, cotton cover | £52.30 |
| Memory Foam Gel | 5cm | Gel-infused memory foam over a memory foam base | £68.99 |
The Sleep Soundly 10cm Extra Deep is the one we review, and it ranks in our best 10cm mattress toppers comparison. Its product page says it is machine washable at 40°C and safe in a tumble dryer, and that Slumberdown products are designed and made in the UK. Standard delivery is free.
Gaps in the information
Slumberdown offers no sleep trial, and only one of the topper pages we checked, the Sleep Soundly 5cm, states a guarantee period (two years). Its FAQ says the warranty on a Slumberdown product sits with the retailer you bought it from. Four of the ten toppers have no stated depth. Most of the range is hollowfibre or microfibre.
Who Slumberdown suits
Slumberdown suits you if you want a cheap, washable UK-made topper to soften a mattress, especially for a spare room or a child’s bed, and like having a wool or memory foam option from the same shop. It is a weaker choice if you want support, precise specifications or the same written guarantee on every product.
How we check
Check date on every code
Every code carries the date we last checked it, not a blanket ‘checked daily’ claim.
Expired codes archived
Anything that expires moves to the brand's archive instead of silently disappearing.
Current shop discount shown
Offers without a code are listed here too, so you can see whether a code is worth it at all.
FAQ
Frequently asked questions
What is the current Slumberdown discount code in October 2026?
The best Slumberdown discount code in October 2026: Save 30% during the Wool Event. There is currently 1 active code, last checked on 02/10/2026.
How much discount can I get at Slumberdown?
At Slumberdown in October 2026, discounts of up to 30% are available. The exact amount depends on the code and its conditions, such as a minimum order value or product category.
How up to date are the Slumberdown discount codes?
The Slumberdown discount codes were last checked on 02/10/2026. We remove expired codes and move them to the archive at the bottom of this page.
Reviews · 1 compared
Slumberdown reviewed
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