All that knowledge has come through, because this is a really excellent mattress. Our lead tester found it made their body feel light, comfortable, and supported from head to toe, and that it left them feeling refreshed in the morning. At 20cm tall, the Levitex mattress is on the thin side, but it feels feel is far more luxurious than it looks – the sleep surface is soothingly soft and plush. Unlike the Emma, it doesn't trap body heat, either. A breathable cover made from a Celliant and polyester blend encases the mattress. During testing, the top memory foam layer evenly contoured to our testers’ bodies to relieve pressure-prone areas. The graphite and gel infusions in this layer are meant to conduct heat away from the body and dissipate it to keep you cool. Underneath is a layer of responsive polyfoam that evenly distributed weight and kept the spine aligned during our tests. The support core features high-density polyfoam, providing stability and limiting excessive sinkage. All-foam mattresses have an adaptive feel that’s often great at relieving pressure, but they can also retain too much heat for some people. The Silk & Snow Mattress uses cooling infusions meant to absorb and dissipate excess body heat, earning it higher-than-average marks in our temperature neutrality tests. Unlike in the USA, where Presidents' Day, Labor Day and Memorial Day tend to see big mattress discounts, there aren't many similar sales events in the UK. Easter and bank holidays may trigger larger discounts from mattress brands, but in general if you want to save on your new mattress, your best bet is to keep an eye on our guide to the latest mattress sales. How long does a memory foam mattress last?

Beyond the heat issue, there are other reasons why memory foam might not be the right choice for everyone. If you sleep on your stomach, many memory foam mattresses won't give you enough support, while if you're a combination sleeper who changes position a lot in the night, you may find that memory foam hug to be just a little too restrictive. And if you're of heavier weight, you could find that you sink too deeply into the foam and end up with too much pressure on your joints. The second reason is that the trial and warranty are very short for a major bed brand. A 44-night trial is still over the three-week window it can take to adjust to a new sleep setup, but the 5 year warranty is really too short, given that you'd expect your mattress to last 7-10 years. One disappointment is its weak edge support, and in terms of firmness we'd suggest that lighter sleepers could find it to be too firm, while it could prove to be too soft to be supportive for heavier bodies. However for most people it's likely to be perfectly comfortable and supportive, and we rate it as a strong choice for anyone who sleeps on their side. It's also great value for money; ignore Emma's RRP as you can usually buy this one for 50% off.

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Our testers often use beakers of blue liquid and move across a mattress to test for motion isolation.

The mattress has a Tencel cover, a eucalyptus-derived fabric known for its breathability and durability. The comfort system consists of polyfoam layers and a proprietary AirCell memory foam, which has an open-cell composition to prevent the foam from trapping excessive body heat throughout the night. Under this is a zoned transition layer. We found that the zoned design supports the midsection while conforming to the shoulder and hips. It all sits on top of a high-density polyfoam support core. The Layla Memory Foam Mattress has an innovative flippable design, quality construction, and competitive price-point compared to other foam beds we’ve tested. The two-sided construction offers a medium (4 out of 10) firmness on one side and a firm (7) feel on the other. We recommend the bed, especially the softer side, for people who need ample pressure relief for sensitive joints. We noticed minimal heat buildup on the surface. The AirFoam’s open-cell design, coupled with a breathable cover, should make the Signature 12 a good option for people who typically sleep hot on traditional memory foam mattresses. Anything of a nature that for hygiene or associated health and safety - this includes the Outdoor Spas, Mattresses and Divan Sets The Dreamfoam Essential is an all-foam mattress that comes in an impressive array of firmness options. Our testing found the medium firm model to be the most balanced, which may be a good option for people seeking a guest room mattress that can suit many different sleepers.For the price, though, the Nectar Memory Foam Mattress is still a strong option – especially when you factor in the extras, which are the best of any model in this list. As well as a full year's trial (matched only by the Eve at #7) you've got a forever warranty, for complete peace of mind. Although cooling was one of the mattress’ standout features, it also performed well in other key categories. We recommend the Silk & Snow for couples who value motion isolation. The mattress absorbed most movement transfer and all noise during our tests. You should notice little to no disturbances when your partner changes positions or gets up at night. The mattress also earned high marks in our pressure relief tests, so we recommend it if you experience pressure buildup in your joints. Please note some larger products are delivered to kerb-side (the street outside your home), it is at the drivers discretion if they can deliver the item to another location on the property.