Dormeo Octasmart 7cm Mattress Topper - Kingsize
313/4337£194.25
*- Save 25%Was £259.00
Bed size: King size
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About this product
Add cooling comfort to your bed with this breathable mattress topper that combines innovative foam layers for supportive, restful sleep. The advanced Octaspring technology and aerocell foam create a structure that allows air to circulate freely, keeping things fresh and comfortable while you rest. At 7cm deep, it adds supportive cushioning to your existing mattress without feeling too bulky or overwhelming. The fitted design stays securely in place on your king size bed, so you won't wake up to a bunched-up topper that needs constant adjusting.
The foam filling is non-allergenic, making it suitable for sensitive sleepers who need extra reassurance. The cover wipes clean easily, keeping maintenance simple and practical for everyday use. The breathable structure helps regulate temperature, so you'll enjoy a cooler, fresher feel night after night. Whether you're updating an older mattress or adding extra comfort to a new one, this topper delivers supportive sleep that works hard every night.
- Set includes: One Topper.
- Suitable for king size beds.
- Size L200, W150, D7cm.
- Cover made from 100% Polyester.
- Foam filling.
- Fitted.
- Non-allergenic.
- Cover is wipe clean.
- EAN: 7630034161540.
4.2
433 reviews
72%
Recommended this product
Customers Say
Comfortable mattress topper improves sleep and relieves pain for many users, but common issues include slipping on mattress and lack of securing straps.
An AI generated summary based on recent customer reviews
Each review is verified as authentic by our independent third party and we only publish reviews from customers or Argos Testers who have purchased or used the item. Customers are incentivised to submit product reviews as part of a prize draw.
Comfortable
I have had this for one week and it has helped me with my hip
Caz78, 65 or over
Does not stay put
This is my second purchase, the design/fabric is slightly different and it does not stay put on top of the mattress. It should be made with elastic to tuck around the mattress corners. Sorry that i purchased this as my last one was very comfortable. After 4 weeks i took it off the bed. Considering cutting it up and making seat pads for dining chairs. I do not recommend this mattress topper
Mrsmc, 55 - 64
Excellent product
Excellent product really good quality and good value for your money
Bedford, 65 or over
Comfy
Very comfy would recommend contours to your body much better nights sleep. Downside no straps ect to hold in place so can move a little on top of mattress
Mandybram, 55 - 64
Double topper
The topper is comfortable but has a tendency to slide on the matress
Richard Brewster, 65 or over
Faulty product
I ordered a mattress topper when it came I followed the instructions to remove it from the box and packaging. However it has a ridge running down the middle of it. I thought it would correct itself but it didnt. I emailed the company and did not get a reply
A Barritt, 65 or over
Satisfied customer
Good product very comfortable good nights sleep is much easier and a very happy customer.
S Bennett
Does what it says on the tin!!!
This topper is super comfy
Top topper, 65 or over
Amazing
I bought this a month ago and I am so glad I did as my mattress was starting to loose support which was starting to give me back ache and waking up still tired from tossing and turning the topper has made my bed feel like new again highly recommend this item
Al, 55 - 64
No good
Uncomfortable, moved on the bed, nothing holding it in each corner, returned for refund
R Russell, 55 - 64
Hello,
The firmness of the Dormeo Octasmart Non Allergic Mattress Topper - King Size is Medium/Firm. You cannot choose the firmness rating for the item.
Thank you for using Q&A.
Hello There.
After checking with our supplier, they have advised for Dormeo Octasmart Non Allergic Mattress Topper - Single.
All of our toppers have undergone testing and comply with the required fire-retardant regulations.
Thank you for using Q & A.
Hello Wila,
I can advise the following for the Dormeo Octasmart Non Allergic Mattress Topper - Double:
It can, but some of the more extreme position may damage the topper long term.
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Hi Sandy 914,
Dormeo Octasmart Non Allergic Mattress Topper - King Size 313/4337
This topper comes with an 8-year limited warranty which means it covers manufacturing faults and does not cover misuse, accidental damage etc.
Thank you for using Q&A
Hi There,
Dormeo Octasmart Non Allergic Mattress Topper - Double
I can confirm this is a Dormeo and they do supply us with these mattresses. I am unable to provide external links I'm sorry.
Thanks for using Q and A.
Hello Ray.
Dormeo Octasmart Non Allergic Mattress Topper - King Size:
This mattress is NOT part of our 100 Night Comfort Promise.
Thank you for using Q&A.
Hello Doey,
The supplier has advised the following for the Dormeo Octasmart Non Allergic Mattress Topper - Double:
“ The Octasmart Mattress Topper has an anti-slip base; we also recommend using a fitted sheet over the mattress and topper. ”
Thanks for using Q&A.
Hi Chris,
The Dormeo Octasmart Non-Allergic Mattress Topper in King Size comes with an 8-year limited warranty
Thank you for using Q&A
8 years
Hi Tissy,
Dormeo Octasmart Non Allergic Mattress Topper - Double
You can collect this from store. You can check your local stores by entering your postcode into the stock checker to the right of the images. This will then show you your nearest store with stock available.
Thanks for using Q&A.
Hi Gabone,
I am sorry but we are not able to recommend items. We do need to advise you to read the item descriptions and reviews if necessary. The supplier has advised this particular one is
The mattress topper, is medium/firm.
Thank you for using Argos Q&A
The small print
*Prices correct as displayed but are subject to change.
The customer and brand answers you’ll see above are submitted independently. As we don’t review these answers, we can’t take responsibility for anything they may say. The responses from Argos colleagues are accurate at the time of publishing. For the latest info, you should check the product page.