Silentnight Whitfield 4000 Pocket Memory Superking Mattress
598/4633£1075.00
Size: Super King
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About this product
Silentnight's premium Whitfield 4000 Memory offers the ultimate in comfort. With a layer of memory foam for body-hugging comfort, this mattress provides soothing pressure relief. This blends with new Ultraflex, featuring a layer of 1000 mini-springs at the top and 1000 at the bottom of the mattress for enhanced comfort through the night. Its Mirapocket support includes 2000 individual pocket springs designed to respond independently to weight and deliver tailored support. With a medium soft feel, this mattress is great for side sleepers.
Silentnight's advanced mirapocket spring system offers zoning across the pocket springs, which is scientifically proven to provide superior spinal alignment, better posture and improved body support through the night. This mattress is covered in a luxury soft knit fabric and is expertly finished to ensure long-lasting comfort. With Hypoallergenic treatment, it provides a dust-mite free surface, helping to reduce moisture and ensure a healthier sleep environment.
At Argos Home we want you to get the best night's sleep possible, so we offer a 100 night comfort promise on our mattresses. Try your new mattress for up to 100 nights and if you aren't sleeping soundly, we'll offer you an exchange for one that suits you better.
- Medium soft feel.
- Pocket sprung with memory foam layer mattress with 4000 springs.
- Knit cover with tufted finish.
- No roll together.
- Anti allergy.
- Air vents.
- Mattress size W180, L200, D32cm.
- Rotate mattress regularly.
- Made in the UK.
Package Dimensions:
- Package 1 dimensions: H31.5, W180, D200cm.
- Package 1 weight: 62.5kg.
General information:
- Manufacturer's 5 year guarantee.
Returns
If you want to return your product once it's been successfully delivered, a non-refundable collection charge of £30 will be applied, unless the product is faulty.
More info about our returns policy can be found here.
4.5
73 reviews
89%
Recommended this product
Customers Say
Overall, users are very satisfied with the mattress, citing its comfort and support as major benefits. However, some found it too firm or uncomfortable, leading to mixed experiences.
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.
Very comfortable
Bought few weeks ago now very happy, never slept as well.
Reidyroo, 45 - 54, West Yorkshire, UK
Such an amazing sleep
This is a thick , supportive mattress . The best nights sleep
BrooDu, 35 - 44, BANGOR
Comfortable mattress
I bought this mattress when 20% off was on 😀 had a firm mattress before hand and always used to wake up with an aching back, since having my new mattress I’m sleeping so much better and no more aching back, it so comfortable, I just sink into it, never want to get up in the mornings now
Pinky, 45 - 54, Newcastle
Great features
I bought this about a month ago and I’m so happy I did, it is so comfortable i’ve been having some of the best sleeps since I purchased this mattress feels like sleeping on the clouds
Mk, 18 - 24, Manchester
Great mattress
I received this mattress just over 2 weeks ago, replacing a 5 week old Simba, which had gone faulty. I've grown up with silentnight and to me they have been a brand I know & trust. This mattress is great. It supports my body well and it's very comfortable. Yes I would recommend this mattress.
Kazc2602, 55 - 64, Livingston, west lothian
Don't buy
Had about 7 months and this is probably the most expensive mattress I have ever bought. It is also the most uncomfortable lumpy and badly made mattress I've ever had. I thought it would get better when bedded in but no. Do not buy. I've had 10yr old mattresses that are more comfortable so disappointed. Really just don't
BJ, 55 - 64
Quality mattress
Bought this mattress about a month ago and could not be happier. You literally sink into it like lying on a cloud
Pigeon, 45 - 54, County Down, UK
Very comfy
I wanted softer mattress and purchased the silent night with its greater depth. It is definitely not as hard as the previous mattress, sleeping very well on it and would recommend. Would have given 5 stars if it filled the bed frame just a little short in length and width compared my old mattress.
Henry, 65 or over, High Peak
Slumberland mattress
It’s the most comfortable mattress I have ever brought best money I have spent at Argos and I would buy another one when needed
Michelle, 55 - 64, West Midlands
Silent night Whitfield 4000 pocket memory king
Bought this to replace a VERY old spring mattress that was well past its use by date. Buying a mattress online is a gamble but I’m glad I read the reviews and chose this one. It is very comfortable. I no longer wake up with aching hips. It doesn’t creak and groan when you move about on it like my old one lol! You don’t disturb the other person when turning over. It also feels warmer somehow too, maybe due to the memory foam in it. It is very deep, my normal sheets do (just) fit but I may invest in some deep sheets. All in all I’m very happy with this mattress and I would recommend it.
Sallyh, 45 - 54, Cornwall
Hello there,
The supplier has advised the Silentnight Whitfield 4000 Pocket Memory Double Mattress weighs 45 Kg.
Thank you for using Q&A.
Hello KBeey,
The supplier has advised the Silentnight Whitfield 4000 Pocket Memory Kingsize Mattress weighs 52.50kgs.
I hope this helps.
Thank you for using Q&A.
Hi LeenyBeeny,
This is a no turn mattress and does not require rotating.
Thank you for using Q&A.
Gem
Hello there,
The supplier has advised the following for the Silentnight Whitfield 4000 Pocket Memory Kingsize Mattress:
"Please see recommendations below:
Only use your mattress with a suitable base, one which will provide suitable support like our upholstered divans. *If you have a slatted bed frame please make sure the slats are at least 10cm wide and the gap between them is no more than 7.5cm to make sure you and your mattress are supported properly.

Mesh or metal rod bases are not suitable for any of our Silentnight mattresses."
I hope this helps.
Thank you for using Q&A.
Hi Bookwoom
Yes the Silentnight Whitfield 4000 Pocket Memory Kingsize Mattress does have side handles.
I hope this helps
Thank you for using Q&A
Hello there,
After checking with our supplier, they have advised: Our mattresses are not tested with any additional bedding products on them, but can be used on them.
Hope this helps
Thanks for using Q&A.
In a nutshell yes
Hi Maggie,
I have checked and yes you can add the take back for an old mattress when you add the item to the trolley it gives you the option for the insurance if you scroll down it is towards the bottom you can then add the recycling to the trolley.
Hope this helps.
Thank you for using Q & A
Hello there,
After checking with our supplier, they have advised: The memory foam is approximately 3cms deep.
Hope this helps
Thank you for using Q and A.
Hello Ria
I would advise that the depth of this Silentnight Whitfield 4000 Pocket Memory Double Mattress is 32 cm.
Thank you for using Argos Q&A.
Sue
Hi there
Having checked this with the supplier for you I can let you know
the firmness rating of this mattress is a medium/soft.
Sorry for the confusion caused
Thanks 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.