Why our sleep experts loved it
If your current mattress is broadly supportive but feels a bit too firm on top, a slim memory foam topper can be a simple, relatively affordable way to soften the surface without buying a whole new bed. The Nest Home Memory Foam Topper from Bensons for Beds is exactly that kind of product, a 3cm (30mm) layer of reactive memory foam designed to add pressure relief and a gentler feel to your existing mattress.
I tested it as an extra comfort layer rather than a problem-solver, and that distinction really matters. This topper can make the top of your bed feel noticeably plusher, but it will not correct a mattress that has lost support, developed dips, or is already letting you sink through the comfort layers into a sagging core. If your mattress is worn out underneath, this will only make the surface softer on the way down.
Price note: I saw this topper listed at £74.99 in a double size, with sizes also available in Single, King and Super King, and it comes in white.
Pros 3cm (30mm) of reactive memory foam adds a noticeable comfort boost without dramatically changing bed height Good value for a branded, zipped-cover memory foam topper Removable knitted cover is machine washable at 40 degrees Corner straps help it stay put and fit mattresses up to 35cm deep A practical way to soften a firm mattress and ease pressure at shoulders and hips Cons It will not fix sagging support, dips, or divots in an older mattress Memory foam can sleep warmer than fibre or wool alternatives Delivery lead times and delivery charges can make the overall proposition less appealing Introduction The appeal of this topper is straightforward, add a little luxury to the surface of your bed, improve pressure relief, and make an overly firm mattress feel friendlier. In practice, 3cm is a sensible depth for most people. It is thick enough to feel the benefit, but not so thick that it overwhelms the character of the mattress underneath or makes your fitted sheets a nightmare.
It is also a good depth if you are trying to smooth out minor surface unevenness, for example a mattress that feels a touch lumpy through quilting or tufts. Just keep expectations realistic, it is a comfort upgrade, not a structural repair.
Construction & Materials This is a simple two-part build. At the centre is a 3cm layer of reactive memory foam, designed to contour to your body shape for tailored pressure relief and support, with the aim of improving spinal alignment. Around that foam sits a removable knitted cover that unzips and can be machine washed at 40 degrees, which is a big practical plus for day-to-day hygiene.
It also uses fitted corner straps to help keep the topper in position. Those straps are designed to work with mattresses up to 35cm deep, which covers most modern hybrids and deeper pocket sprung mattresses that can otherwise be awkward to strap securely.
Warranty-wise, it comes with a 1-year guarantee, which is fairly typical for toppers at this end of the market.
Comfort & Feel The feel is recognisably memory foam, you get a gentle, moulding sensation as your weight settles in, particularly at the shoulders and hips. Because it is only 3cm deep, it does not create that deep, enveloping hug that thicker toppers can, but it does take the edge off a firm surface and adds a more cushioned first impression when you lie down.
I found the most noticeable change was in the initial contact comfort. If your mattress feels a bit too taut, perhaps you wake up with slightly sore shoulders as a side sleeper, this topper can take pressure down a notch. On a back sleeper, it tends to feel like a softer landing without dramatically changing alignment, provided the mattress underneath is still doing its job.
If you are already dealing with a mattress that lets you sink through too far, the topper can be a double-edged sword. It will feel softer, yes, but it can also make it easier to fall into the dips you are trying to escape. In other words, it does not flatten out divots, it follows them.
Performance & Support Support with any topper is always a partnership between the topper and the mattress. The Nest Home Memory Foam Topper is designed to improve comfort and pressure relief, not to add meaningful support in the way a new mattress core would. When I used it on a mattress that was still supportive, it helped keep my body feeling more evenly cushioned, especially around bony pressure points.
On a mattress that was already compromised underneath, it did not improve the underlying feel. If your hips are dipping because the support layer is tired, adding memory foam on top does not stop that, it simply makes the top feel softer as you sink. This is the most important buying point to understand before you order.
Motion-wise, memory foam generally absorbs movement well. With only 3cm of foam, I would not expect miracles, but it can take a little of the vibration and partner disturbance out of the surface feel compared to sleeping directly on a springier comfort layer.
Temperature Regulation Memory foam has a reputation for holding onto heat, and that is still broadly true. This topper is not marketed as a cooling topper, and there is no mention of gel infusions or phase change fabrics. The good news is that at 3cm deep, it is less likely to feel swampy than a thicker slab of foam, and the knitted cover feels breathable enough for everyday use.
If you are a hot sleeper, I would still treat this as a warmth-adding comfort layer rather than a cooling upgrade. In the depths of winter that can be a benefit. In summer, or if you naturally run warm, you may want to pair it with breathable bedding and a lighter duvet, or consider a topper that is designed specifically for airflow.
Practical Features The removable, washable cover is the standout practical feature here. A topper lives close to you, it takes on body oils and the occasional spill, so being able to unzip the cover and wash it at 40 degrees makes it far easier to keep the bed feeling fresh.
The corner straps are the other big win. Cheaper toppers often shift and bunch, particularly on smooth mattress covers. Here, the straps help anchor it, and the fact they are designed to fit mattresses up to 35cm deep means you are less likely to be fighting the elastic on a deeper mattress.
Delivery is worth paying attention to. Bensons outlines set delivery charges and a weekday delivery window system, and delivery availability is postcode-dependent. In my experience, this is where the value argument can wobble for a topper, if the lead time is long or if delivery costs feel disproportionate compared to the product price, it can take the shine off what is otherwise a sensible upgrade.
Who It Suits This topper is a good fit if:
You have a mattress that is supportive but slightly too firm on top, and you want a softer, more pressure-relieving surface.
You are a side sleeper who wants a little more give at the shoulders and hips without dramatically changing the bed feel.
You want a topper that is easy to keep clean, the washable zipped cover is genuinely useful in real life.
You have a deeper mattress and need straps that will actually stretch around it, up to 35cm deep.
You want a relatively affordable comfort refresh rather than a full mattress replacement.
Who It Doesn’t Suit This topper is not the right choice if:
Your mattress has visible dips, divots, or a sagging support core. This will not correct that, and may make sinking feel more obvious.
You are a very hot sleeper and are specifically trying to cool the bed down, memory foam is rarely the best route for that.
You need something urgently. Delivery timing can be a sticking point, and with toppers, waiting weeks can feel hard to justify.
Final Verdict The Nest Home Memory Foam Topper does what a well-judged 3cm memory foam topper should do, it adds a noticeable layer of comfort, softens a firm sleeping surface, and improves pressure relief in a way that feels immediately more forgiving. The washable cover and secure corner straps are the features that make it feel like a considered, user-friendly buy rather than a bare slab of foam.
Just be honest about what you need. If your mattress is worn out underneath, this topper will not rescue it, it will only make the top softer. And if delivery lead times are long for your postcode, that can genuinely affect whether it feels worth it. If you are using it for its intended purpose, a comfort upgrade on a still-supportive mattress, it is a strong value option that feels like money sensibly spent.
Why you can trust WantMattress
We spend hours testing (and/or researching) every product or service we review, so you can be sure you’re buying the best. Find out more about
how we test .
