Southern Foam Memory Foam Mattress Topper, 3 Inch, UK King Size


Southern Foam memory mattress toppers amazing comfort and value
So easy to use

So easy to use

Our toppers don’t require fiddly securing straps like other toppers. The topper is simply held securely in place with a fitted sheet. It’s easy to roll up and carry too.

Optional cover

Optional cover

Our memory foam mattress toppers can be supplied with or without a cover. Just select your preference when you order. The cover is made from soft, durable 100% polyester, which is fully washable.

Add comfort anywhere

Add comfort anywhere

If you’re renting, a topper gives you peace of mind and comfort when sleeping on a pre-used mattress. The topper will improve the comfort of a sofa bed for guests and it’s great to take when you’re travelling or camping too.

Undisturbed night's sleep

Undisturbed sleep

The foam topper absorbs motion so you’re less likely to be disturbed by your partner tossing and turning on the mattress.

So easy to use

So easy to use

Optional cover

Optional cover

Add comfort anywhere

Add comfort anywhere

Undisturbed night's sleep

Undisturbed sleep



Weight: 9.26 kg
Dimensions: 30 x 30 x 7.6 cm; 9.26 Kilograms
Brand: Southern Foam
Model: B00LTQ40DC
Colour: Yellow
Colour: Yellow

144 Responses

  1. CarolynWishart says:

     United Kingdom

    I suffer from a few different illnesses that make being in bed uncomfortable, this topper has helped me enormously.

  2. Matthew Bolton says:

     United Kingdom

    So comfortable and value for money.Highly recommend.Excellent on our King Size.

  3. tsemtulku says:

     United Kingdom

    Love it, I have had trouble setting for many months due to feeling bumps and lumps. Well no more, this is so comfy and a real good depth. I won’t have trouble sleeping any more. Made in UK too. Well done love it. X

  4. VaniaL38ykqpv says:

     United Kingdom

    Item was of excellent quality and exactly as described. It was amazing to watch as it expanded from a relatively small delivery size to the full ordered size, once unpacked. It has so far proved to be an excellent product and does what it is advertised to do. I would recommend the seller highly.

  5. Todd McCarthy says:

     United Kingdom

    I’ve been struggling with back problems for a while now and the first time I slept with this was like they never existed. Was hard to get the foam out of the shrink wrap with out damaging or catching with the scissors, but once out and left for a while it took full shape and fit my king size bed perfectly. Highly recommend.

  6. Amanda Kooser says:

     United Kingdom

    Used for a king size bed in a static caravan. Greatly improved comfort.

  7. Anonymous says:

     United Kingdom

    This was recommended by a friend and it lived up to expectatio

  8. Anonymous says:

     United Kingdom

    First order had a tear in the foam so this had to be returned. Easily done via amazon returns on your account. Replacement ordered no problem.
    The foam was tightly packaged and plumped up very quickly when laid on top of a bed. The chemical smell the product has isnt the most pleasant and can see why some people have returned it for this reason.
    The foam is soft and comfortable but the first few weeks of use take some getting used to and both myself and my wife had minor lower back pain because of this. We persisted and this has since gotten better.
    I originally saw the item on offer for 58 but when I went to purchase it, it had increased to 70. Quite a big jump but still one of the cheapest on offer. It appears amazon alter prices frequently and it never seems to be to the benefit of the customer unfortunately.
    Overall I would recommend price alone.

  9. ckalagbor says:

     United Kingdom

    Bought this item to raise the height of our king size guest bed ready for my elderly in-laws to make it easier for them. Although we haven’t personally used it I’ve been told by my in-laws & other friends who visited recently that it’s very comfortable The price was good for a 3″ one too, so good value for money in my opinio

  10. Anonymous says:

     United Kingdom

    Helped my husband with his awaiting-replacement hip. Moves around if you don’t have a proper cover; plus you might need an extra-deep fitted sheet.

  11. NadinePalmer says:

     United Kingdom

    Golden Review Award: 2 From Our UsersWithin 4 hours of unwrapping this mattress topping foam had fully expanded to 7.5cm deep and 150cm x 200cm. No smell when I first unpacked but did develop and was quite strong the first night gradually decreasing to almost gone 72 hours later. Thankfully new foam smell wasn’t bad enough to give me a headache or nausea. It is incredibly soft to sit or lie on and after spending 15 years trying every other kind of mattress topper I am so relieved to finally have found something that makes sleeping comfortable again. According to the Southern Foam website this is their entry level budget foam – worth every penny.

  12. Anonymous says:

     United Kingdom

    Originally thought too small in packaging,but ample size,and very comfortable.

  13. AnthonyAshbolt says:

     United Kingdom

    I wasn’t sure how good this would be since the price was so much lower than other mattress toppers, but it is amazing. I am so impressed with it. It’s so much thicker than I expected. I saw a few reviews that said it had an unpleasant smell but it seemed fine to me. I left it to uncurl on top of the bed for a few hours and it seems fine. The topper is so comfortable and very supportive. I would definitely recommend anyone with aches and pains from a bed as this topper has really helped with my leg pai

  14. DannGallegos says:

     United Kingdom

    The pic is when I first put it on the bed. It takes about 6 hours for it to expand & settle. This is an absolute bargain & would highly recommend. My new mattress is extremely hard. The topper now makes is super comfortable. 5

    5 ⭐️ Grea

  15. Amanda Hernandez RD says:

     United Kingdom

    Completely changed my bed. Worth a try. We had a hard bed and have trywd many toppers to add abit of comfort. This one is amazing.

  16. Scott Learn The Oregonian says:

     United Kingdom

    What a difference it has made we are really pleased

  17. David Sarasohn The Oregonian says:

     United Kingdom

    More than happy with the quality of the product and equally satisfied with the delivery and the overall experience during this purchase, highly recommended.

  18. Anonymous says:

     United Kingdom

    Great product at first I thought there is no way that is going to fill my bed but a hour later there is was so thick so cozy very little smell at all.

  19. Anonymous says:

     United Kingdom

    Very good bed topper. Great value for money. Only thing I’ve noticed is when my partner is on it, it seems to make weird trumpety noises.

  20. Anonymous says:

     United Kingdom

    Arrived on time, well packed, exactly as described…. BUT … it didn’t come with a plastic wrap safely removing cutter, therefore had to use a pair of scissors which damaged the foam!!! How unfortunate. It is comfortable and everything but at the same time it got damaged during removal of the plastic. I bought other mattresses which came in an air pressed packaging but all of them came with a cutter to safely remove the packaging.

    Apart of the above issue the mattress is very good quality and very comfy.

    To the future buyers, please be careful when you cut the plastic!

  21. Charis0718 says:

     United Kingdom

    Golden Review Award: 2 From Our UsersAnother very positive review I’m afraid. An amazingly, unbelievably comfortable mattress topper.
    Good quality memory foam. Press your hand in, take it away, watch the hand print slowly disappear.
    “New mattress” smell. Not overpowering, and not actually all that unpleasant. Not unlike a new car smell.
    Comes squeezed into a tiny box. Open the box, carefully cut the thick plastic wrapper, and watch it expand, and expand. Ooh er.
    Took a couple of hours to reach full size and I felt it helped letting it expand on a slidey surface. As I found initially, if left to expand on carpet, it “grips” the carpet and this slows down the expansion.
    Once expanded it was exactly the same size as the king size mattress I got it to go on top of. Within a few mm.
    i bought this because our cat decided to relieve itself on our old mattress, which had to go straight out the front door. Cheers, Mr Scrumpton.
    Buying a mattress in lockdown is tricky.
    We bought one online from a well known department store which was described as “medium firm”. When it arrived it was painfully hard, absolutely awful. As a last-ditch attempt not to have to buy another random mattress on line I thought I’d try one of these toppers. It has turned the un-usably hard mattress into a floaty dream.
    As it was a last ditch desperate attempt I bought this in a hurry without a cover. Now it is so good there is no way I’d part with it. I wished I’d bought the version with the cover. So I phoned the manufacturer and explained, and they were able to sell me a cover to fit.
    Great product, great manufacturer support. I will definitely buy this company’s products again, and recommend to friends and family.
    Stop clicking around reading reviews and just buy this.
    And think twice before you let your cat in the bedroom.

  22. [email protected] TNT Magazine says:

     United Kingdom

    Super thick, very good value for money. Makes an old mattress very happy well worth i

  23. Anonymous says:

     United Kingdom

    The king size matress arrived rolled within a few days of ordering Lovely quality 3 inches thick perfect for relieving the aches and pains of oesteoarthritis in my neck and fibromyalgia of arms. and back especially. There was a very slight smell on unrolling but it went after a few hours out of the box /packaging. Would definately recommend this company for service / product and delivery

  24. Новиков Сергей says:

     United Kingdom

    Just a quick review firstly as I was so happy this arrived so fast but I freaked!!! It’s way too small!!! We measured it and the bed….it’s too small!! We left it for a while and it expanded and I was amazed considering it fitted inside the box and was the width of the box when we got it out! Haven’t tried it out yet so will update when we do but after seeing so many reviews about the size I had to post this!

    DOES EXPAND!!!!

  25. MarquitTurley says:

     United Kingdom

    Bought to relieve back pain , works for me , we also covered this with a mattress cover , and there are no hot sweats at all .

  26. Gannon Burgett says:

     United Kingdom

    This topper has made such a difference to our bed, its thick enough to provide real comfort and it doesn’t get hot ,something I was concerned about. Would recommend this topper and this seller.

  27. Anonymous says:

     United Kingdom

    Pros comfy
    Cons to comfy i cant get out of it lol

  28. Danuta89Scvw says:

     United Kingdom

    Bought for a friend she has not brought it back so it must be ok

  29. Jide Akinrinade says:

     United Kingdom

    Amazing price! Amazing quality! So thick and very comfy. Would recommended

    Great price

  30. JosieCulley says:

     United Kingdom

    Golden Review Award: 2 From Our UsersHaving read previous reviews I was really hesitant to buy this however it arrived a day earlier than expected, there was a smell but after it was aired out this went. It plumped up very well and the fold in the middle disappeared. I’ve had it for just over 3 weeks now and I sleep so much better on it. I have lower back and hip issues and I don’t get this now when I sleep. It has helped me sleep more comfortably than ever. I would recommend getting this 100%.

    To air this out I unrolled and unfolded out the box and left it on its side inbetween two mattresses to take the fold out in the spare room with the window open for over a day and it was perfect.

  31. Anonymous says:

     United Kingdom

    Amazing quality for the price. No more back pain, very comfortable. Well packaged with fast delivery. Highly recommended. Best night sleep I’ve had in a while.

  32. EnriqueKellerma says:

     United Kingdom

    Love tbe thickness! Good quality density. No imperfections. No overwhelming smell at all, as usually you would expect some with a new memory foam. Good fit, good packAging. Deliveted on time.

  33. Aurelio1683 says:

     United Kingdom

    Absolutely love it , best one I have purchased so far , quick delivery and even tho it says on box to leave a few hours out of packaging because it’s vacuum packaged , it only took about 15/20 mins for it to because nice and full , really impressed by this product and the price would defo recommend and would buy agai

  34. EulaConehpukyam says:

     United Kingdom

    Was worried after reading other reviews but size was perfect, there is a smell initially but goes away really comfortable and good value for money.

  35. Anonymous says:

     United Kingdom

    Found our mattress to be a bit hard and husband and I had been suffering and not sleeping well. Bought this mattress topper which solved all our problems and now we have a great sleep!

  36. nickcampi says:

     United Kingdom

    Does the job and made the bed so much more bearable. It does smell for a while though but once you’re past that it’s fine

  37. Anonymous says:

     United Kingdom

    Really comfy, it did have a chemical smell when I unpacked it but left it in the garage over the weekend to air out. Had this for a year now and still really comfy.

  38. Anonymous says:

     United Kingdom

    Golden Review Award: 3 From Our UsersBest thing for such a good price! We bought a new mattress that was too hard, could not be bothered with returning, so got this topper instead. It’s super comfortable and not lost its shape after 2 months. I’d recommend for back pain sufferers. Made in the UK! The smell disappeared after couple of days.

  39. Anonymous says:

     United Kingdom

    Does the job. We were getting back ache from a firm mattress.this solved our problem.we bought a 3inch thickness. However it holds your body heat.i love being warm in bed.
    Hubby gets hot too quick and in the summer it was a bit uncomfortable as he was trying to look for a cold patch on the bed!

  40. StanleyDEA says:

     United Kingdom

    Very nice, comfortable but smells odd and it doesn’t have grips so it moves about.

  41. Anonymous says:

     United Kingdom

    I couldn’t recommend this enough. This is a perfect product, affordable and extremely comfortable. I have woken up every day for the past 2 years with a bad back. Since having this memory foam I have no more pain. Thank you

  42. TEU says:

     United Kingdom

    My back & hips are much better after using this mattress toppe

  43. TrudyT28xonwc says:

     United Kingdom

    Golden Review Award: 3 From Our UsersReally happy with this, it fits the bed perfectly, the smell went away after I sprayed it with zaflora and left it for 24 hours. Have slept on it for a month now and still very happy. I was sceptical about buying this as it’s so cheap compared to big brands but i’m glad i bit the bullet and did it. Would highly recommend

  44. Anonymous says:

     United Kingdom

    I have manged to have a good night sleep with this toppe