Silentnight Deep Sleep 2.5cm Mattress Topper -Kingsize
837/9128£36.00
Bed size: King Size
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About this product
Sink into deeper sleep. Generously filled for endless comfort and support, helping you to sleep more deeply every night. The Silentnight Deep Sleep Mattress Topper is generously filled with hollowfibre and covered in soft microfibre which results in a soft, cosy topper that provides gentle support and adds an extra layer of comfort to any mattress. The topper is hypoallergenic which means it's kind to skin and does not include any contents likely to cause allergies, it's also machine washable so you can keep enjoying a deep sleep.
- Set includes: 1 topper.
- Size L203, W153, D2.5cm.
- Cover made from 100% polyester microfibre.
- 100% polypropylene reverse.
- 100% polyester hollowfibre filling.
- Secured by elasticated corner straps.
- Non-allergenic.
- Cover is machine washable and suitable for tumble drying.
- EAN: 5012701494786.
4.6
2768 reviews
92%
Recommended this product
Customers Say
This mattress topper is praised for its comfort, support, and quality, significantly improving sleep quality for many users. However, some find it too thin or lacking in support.
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.
Great topper
Lovely mattress topper, soft and comfortable, very good value, did buy in the sale.
Amy, 45 - 54
Great and soft
Bought at start of uni year very soft
Toby M, 18 - 24
comfortable
Good quality for the price
bob27, 35 - 44
Painless sleep
Takes the aches and pains out of sleeping
Peter, 45 - 54
Bottom topper
Didn't realise this is only 1 inch thick. And that's when it's fluffed up. Does nothing to provide any support. Waste of money.
Johnnybegood
Comfort
I purchased this mattress topper for my daughter as she was heading off to university, and like many parents, I was concerned about the comfort of the standard student accommodation mattress. This topper exceeded all expectations The topper is thick, soft, and very supportive, instantly improving the comfort of the mattress underneath. It fits securely on the bed and doesn’t move around during the night. The breathable material helps regulate temperature, so it’s comfortable in all seasons. It’s also easy to care for, which is ideal for busy student life.
Chrissie, 45 - 54
Soft and comfortable
This topper has made a difference to quite a hard bed.
Katie, 65 or over
Comfortable upgrade
I’m really impressed with this mattress topper! It has completely transformed the comfort of my bed. The cushioning is just the right balance of soft and supportive—plush enough to feel luxurious, but still firm enough to provide proper support for my back. I’ve noticed a big improvement in my sleep quality, with fewer aches and much better pressure relief. The topper fits perfectly on my mattress and stays in place without shifting, and the material feels high-quality and breathable, so it doesn’t get too warm at night. It was also easy to set up and expanded quickly after unpacking. Overall, this is a fantastic upgrade for anyone looking to make their bed more comfortable without buying a new mattress. Highly recommended!
Jellybean, 55 - 64
Comfy
Bought this for uni and it is amazing :) So soft!
Jade, 18 - 24, Wolverhampton
Suitable for occasional use
Bought this and now using on a camp bed which makes it more comfortable
Kassy33, 65 or over, Kent
Hello there,
The Silentnight Deep Sleep Mattress Topper 2.5cm -Double is secured by elasticated corner straps.
Thank you for using Q and A.
Hi there,
The Silentnight Deep Sleep Mattress Topper - Double is designed to provide gentle support and adds an extra layer of comfort to any mattress.
Thanks for using Q&A
Its made my rock hard student accom bed more bearable but if you have a bigger budget you could probably find better options
I received a reply, that its 2.5 cm and not 5 cm -
I miss read the description - But its still useless and a complete waste of money - I wish I cld return it for a refund -
Dont waste your money on it.
Hello Lina.
The depth of the Silentnight Deep Sleep Mattress Topper - Single is 2.5 cm.
Thank you for using Q&A
Hi, Dolly.
Silentnight Deep Sleep Mattress Topper - Double 836/1394
A king-size would be too large for a double, and the elastics would not fit as snugly as intended.
Thanks for using Q&A
Karen
Hello Tammy,
After checking with our supplier, they have advised for the Silentnight Deep Sleep Mattress Topper - Kingsize: For a King sized topper we recommend using a large capacity washing machine typically around 10kg drum or larger. If your home machine isn’t suitable, many customers find that local laundrettes or professional laundry services are a good option.
Thank you for using Q&A.
Hello Sam. I have checked our systems for the Silentnight Deep Sleep Mattress Topper - Single and can confirm that this weighs 1099grams. Thanks for using Q and A.
Hi Stevo,
The size of the Silentnight Deep Sleep Mattress Topper - Double is L193, W137, D2.5cm.
Thank you for using Q&A
Hello there. The Silentnight Deep Sleep Mattress Topper is made from hollowfibre and microfibre. It is not made of memory foam.
Thansk for using Q and A.
Hello There.
After contacting our suppliers they have advised for Silentnight Deep Sleep Mattress Topper - Single:
This item is designed to be used on a mattress and not an air bed. The straps are designed for a mattress with a depth of up to 28cm.
Thank you for using Q&A.
Hello Yogalynn,
The supplier has advised the following for the Silentnight Deep Sleep Mattress Topper - Double:
"This topper does not have a removable cover."
Thank you for using 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.