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

162 Responses

  1. CarolynWishart says:

     United Kingdom

    Great buy.
    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

    3inch Memory Foam Mattress toppe
    So comfortable and value for money.Highly recommend.Excellent on our King Size.

  3. UJFNidasjhkzov says:

     United Kingdom

    OMG
    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. tsemtulku says:

     United Kingdom

    OMG
    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

  5. JeanettQuinto says:

     United Kingdom

    Arrived quickly, ahead of time.
    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.

  6. VaniaL38ykqpv says:

     United Kingdom

    Arrived quickly, ahead of time.
    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.

  7. Todd McCarthy says:

     United Kingdom

    Worth every penny
    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.

  8. Amanda Kooser says:

     United Kingdom

    Really made a difference!
    Used for a king size bed in a static caravan. Greatly improved comfort.

  9. Anonymous says:

     United Kingdom

    Made a massive difference to sleep quality
    This was recommended by a friend and it lived up to expectatio

  10. Frontline Health Workers Coalition says:

     United Kingdom

    Memory Foam topper 3inch
    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.

  11. Anonymous says:

     United Kingdom

    Memory Foam topper 3inch
    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.

  12. Tom Mack says:

     United Kingdom

    Great for guests
    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

  13. ckalagbor says:

     United Kingdom

    Great for guests
    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

  14. Anonymous says:

     United Kingdom

    Wish I'd bought the cover!
    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.

  15. Anonymous says:

     United Kingdom

    Golden Review Award: 2 From Our UsersInitial impressions excellent - soft and comfortable
    Within 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.

  16. NadinePalmer says:

     United Kingdom

    Golden Review Award: 2 From Our UsersInitial impressions excellent - soft and comfortable
    Within 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.

  17. Anonymous says:

     United Kingdom

    Deceptive size and no markings too emphasis size on box
    Originally thought too small in packaging,but ample size,and very comfortable.

  18. Anonymous says:

     United Kingdom

    So comfortable
    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

  19. AnthonyAshbolt says:

     United Kingdom

    So comfortable
    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

  20. Blog Admin says:

     United Kingdom

    5 ⭐️ Grea
    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

  21. DannGallegos says:

     United Kingdom

    5 ⭐️ Grea
    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

  22. Amanda Hernandez RD says:

     United Kingdom

    Great produc
    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.

  23. Scott Learn The Oregonian says:

     United Kingdom

    Great produc
    What a difference it has made we are really pleased

  24. David Sarasohn The Oregonian says:

     United Kingdom

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

  25. LucianaHatfield says:

     United Kingdom

    Must have
    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.

  26. Anonymous says:

     United Kingdom

    Must have
    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.

  27. Anonymous says:

     United Kingdom

    No complaints
    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.

  28. Andrew Hard says:

     United Kingdom

    Comfy.... BUT......
    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!

  29. Anonymous says:

     United Kingdom

    Comfy.... BUT......
    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!

  30. UlrikeLove says:

     United Kingdom

    Golden Review Award: 2 From Our UsersGave me back my sleep
    Another 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.

  31. Charis0718 says:

     United Kingdom

    Golden Review Award: 2 From Our UsersGave me back my sleep
    Another 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.

  32. David Matthews says:

     United Kingdom

    Excellent Matress Toppe
    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

  33. [email protected] TNT Magazine says:

     United Kingdom

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

  34. Anonymous says:

     United Kingdom

    Excellent Matress Toppe
    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

  35. Новиков Сергей says:

     United Kingdom

    DOES EXPAND!!!!
    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!

  36. MarquitTurley says:

     United Kingdom

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

  37. Gannon Burgett says:

     United Kingdom

    Good value for money
    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.

  38. Anonymous says:

     United Kingdom

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

  39. Danuta89Scvw says:

     United Kingdom

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

  40. Jide Akinrinade says:

     United Kingdom

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

  41. Anonymous says:

     United Kingdom

    Golden Review Award: 2 From Our UsersWorth the buy
    Having 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.

  42. JosieCulley says:

     United Kingdom

    Golden Review Award: 2 From Our UsersWorth the buy
    Having 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.

  43. EnriqueKellerma says:

     United Kingdom

    Great density- whiff free!
    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.

  44. Anonymous says:

     United Kingdom

    Highly recommended.
    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.

  45. Aurelio1683 says:

     United Kingdom

    Amazing produc
    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

  46. EulaConehpukyam says:

     United Kingdom

    Happy custome
    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.

  47. Anonymous says:

     United Kingdom

    Transformed my bed!
    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!

  48. nickcampi says:

     United Kingdom

    Good product slight smell
    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

  49. Anonymous says:

     United Kingdom

    Made a £200 bed into a £800 bed
    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.

  50. Anonymous says:

     United Kingdom

    Golden Review Award: 3 From Our UsersGreat produc
    Best 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.

  51. Anonymous says:

     United Kingdom

    Golden Review Award: 3 From Our UsersGreat produc
    Best 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.

  52. Anonymous says:

     United Kingdom

    Very good produc
    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!

  53. Anonymous says:

     United Kingdom

    Very good produc
    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!

  54. StanleyDEA says:

     United Kingdom

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

  55. Anonymous says:

     United Kingdom

    A MUST HAVE
    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

  56. TEU says:

     United Kingdom

    3 inch Mattress Toppe
    My back & hips are much better after using this mattress toppe

  57. Anonymous says:

     United Kingdom

    Golden Review Award: 3 From Our UsersReally happy
    Really 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

  58. TrudyT28xonwc says:

     United Kingdom

    Golden Review Award: 3 From Our UsersReally happy
    Really 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

  59. Anonymous says:

     United Kingdom

    Adds a bit of comfo
    I have manged to have a good night sleep with this toppe

  60. LashundaBills says:

     United Kingdom

    Topper Cove
    Very good value for money, regret not purchasing it with cover.

  61. SherrilCintron says:

     United Kingdom

    Fab produc
    Best thing ever bought. Made bed so much more comfy. Love it. Fast delivery to. Thank you.

  62. Anonymous says:

     United Kingdom

    Golden Review Award: 2 From Our UsersExcellent for price
    I bought without cover as I already own mattress cover. Yes it smelt pretty awful when it arrived, I aired it for 48 hours before I slept on it and it then took another 2 weeks to completely fade. However, other than that, perfect for price, very comfortable. Excellent value for money as I didn’t want to invest in a 1000 new mattress just yet.