Hypnia 12 inch Memory Foam Mattress, King Size 5ft x 6ft6

We've had our 12" double for about 5 years now and it's still firm and comfortable, though it is worth pointing out that both me and my wife both prefer a firm mattress. This is what we searched for 5 years ago and we were not disappointed. I don't personally find the mattress too warm and in fact the wife usually has a hot water bottle with her most nights, even in the warmer months. We got a bargain when we bought this and in fact it was one of the deciding factors at the time but I can honestly say it was the best money I've spent. We're in the process of buying a new bed and we almost decided on a king size so would have bought the king mattress, but we eventually settled back on the double so it'll be around for a while yet. I've not lost its shape or firmness, though it would be interesting to try a new one side by side, but I've not noticed enough change that I've thought about replacing it. We'd bought an £800 mattress from the store prior to this one and only lasted a few years before it turned into porridge and became uncomfortable. In short: I recommend this mattress if you prefer a firm one. I would buy another if I needed one They are great value for money but you will need to buy deep fitted sheets, now more widely available that 5 years ago

This king size mattress is easily as good as others at twice the price. I know this because our previous mattress came from a well known hand-made bed store and cost over £400. I managed to snag the Hypnia for £190 and I couldn't be happier. It's film, moulds well and the 12" depth is great too. Just a couple of things you need to be aware of; firstly virtually all memory foam mattresses (unless on top of a pocket sprung base) sleep pretty hot. You won't need a high tog duvet, secondly the thickness means that you'll need to get extra deep fitted sheets. John Lewis do them but you need make sure you've got the measurements right otherwise your fitted sheet will just ping off. Other than that the mattress arrives compressed and will need about 24 hours to reach it proper size. The two free memory foam pillows were a nice little bonus too.

Great price. Well packaged. Arrived on time. All good so far. The memory foam mattress arrived on time. The mattress arrives vacuum sealed and rolled up for easy transport. Easily 4 or 5 times more compact than when unwrapped. The experience of opening the mattress from its plastic shell is great. It starts to draw air into the sponge and starts to grow straight away. We let the mattress settle for a couple of days. Noticed no manufacturing smells after a couple of days at all. The mattress grows to quite a thick size and was just right for our new leather bed. Mattress feels firmer than I thought it would. The soft cotton feel material covering the mattress amd pilows feels nice. You do get that "as seen on tv" effect when you push your hand into the mattress and pull it away you can see your hand print where the material has conformed to the shape of your hand and it slowly fills out. Sweet. If your used to sprung mattresses it takes a bit of getting used to. I tend to toss and turn at night its not so easy as its not spring assisted! After one night noticed that lower back twinge is not present in new mattress as it conforms to your bodys shape. Our old ortho mattress did nothing of the sort. Sleeping on your side is more comfortable as your shoulders sink in rather than get in the way. Too soon to ive a definitive review and will keep old mattress just in case. Would consider separating to memory foam layer from sponge bottom and adding as a topper to old mattress if there is any problems. At the price I purchased at I can not complain. Its as cheap as a cheapo topper but feels soo much better. May pop back with more info if required\requested. So far worth the money as its cheap as a a very cheap mattress.

I was dubious about spending this amount of money on something i could not test first. I looked into the very expensive memory foam mattresses, but they were out of our league. I looked at mattress toppers too,3" of foam to go on your existing mattress. luckily I found some information,that said that it was okay,but not ideal as they could "slide". So opted for this,with fingers crossed. Well I am so glad we did.I have had fantastic sleep,since using this product. The mattress is yielding but supportive. I am a "side sleeper",I sleep basically in the recovery position. I have never been able to sleep on my front or back. This has often led to low back and hip pain. Although I use a support pillow under my raised leg,it did not help. This product has been a godsend,no pain,and it is the most comfortable mattress I have ever slept on. The height of the bed is raised of course,but this is not a problem for us,in fact it is more in keeping as I have a (repro)Victorian bedstead.I bought deep fitted sheets on-line,my existing mattress protector fitted. I also suffer from neck pain,and my loose feather pillow,seems even more comfortable on this mattress. I am yet to try the pillows,though I have used them when sitting up,and they are very supportive,yet soft.

wonderful for first couple of weeks, then the memory foam settled and my husband and myself had our own "grooves" and a 2 foot hump in the middle of the mattress!!! I turned the mattress weekly as recommended and we could not get rid of the " hump" which gave me the hump!!!! Returned with great difficulty as amazons returns are a farce!!!!!

very impressed. needed a new mattress as our last spring one was busted. took a gamble on memory foam as we could put it in our spare room if it wasn't for us. i thought it may be too hot for me as i had tried a topper previously and was too hot. my wife loved it straight away and it take me 2-3 nights to get used to being a little hotter (i believe this is common) but now i wouldn't go back. for both of us we notice a deeper longer sleep probably due to less tossing and turning. highjy recommended.

Bought this for a new flat and can honestly say it is one of the best purchases made on Amazon. It was delivered in just a couple of days all in one large (close to 6ft) box. Once opened only took a couple of hours to fully expand. Like others and expected there is a chemical smell (as with all foam) this went in just a couple of days, I also used a spray air freshener takes the edge off while the smell dilutes. Just make sure to acquire some extra deep sheets as standard ones do not fit (can be bought on Amazon or certain high street) pillow cases do cause a problem, I have seen some specific ones online made for these contour pillows but havnt had a chance to try them out. It's not all positive, there is one huge flaw with this, you will find getting up for work VERY difficult as it is so comfortable you won't want to get up. That aside an excellent product.

This was very nice for about two years, then we noticed it was not supporting us very well. After about 2 and a half years it got so bad, we decided to replace it. I contacted the supplier, as it came with a 10 year guarantee, but they were not in the least bit interested to do anything.