A mattress topper is the cheapest way to transform a bed you are not quite happy with, softening a mattress that feels too firm, reviving one that has started to sag, or simply adding a layer of hotel-grade comfort to a bed that is otherwise fine. It is a fraction of the cost and upheaval of a new mattress, which is exactly why the market has filled with options at wildly different prices. We have narrowed it to six mattress toppers worth buying, from a sub-£30 budget layer to a spring-and-foam hybrid splurge, with an honest note on who each one actually suits.
What to look for
Begin with the material, because it shapes the whole experience. Memory foam contours closely and relieves pressure, which suits side sleepers and achy joints but can trap heat; latex and hybrid spring toppers feel more responsive and sleep cooler; and synthetic or microfibre fillings add a softer, more affordable layer without much contouring. Depth matters too, as a 2.5cm topper tweaks the feel while a 5cm-plus layer meaningfully changes how firm the bed feels. Pay attention to temperature, since a gel infusion, an open-cell structure or a breathable cover all help if you run warm at night. Check how it stays put, whether through elasticated corner straps or a full anchor band, because a topper that slides around is a nightly frustration. And look at washability and trial periods, as a removable, washable cover and a home trial take much of the risk out of the decision. A topper also works best as part of a considered bed, so it is worth pairing yours with the right breathable bamboo sheets and a duvet cover that suits the season.
Be honest, too, about what a topper can and cannot do. It is brilliant at adjusting comfort: softening a mattress that feels like a board, adding a plush hotel-style layer, or tailoring one side of the bed to a different preference. What it cannot do is rescue a mattress that has genuinely broken down, because a dip or a collapsed spring unit will telegraph straight through any topper you lay on top. If your mattress sags in the middle or you can feel the springs, a topper is a sticking plaster rather than a cure. Match the firmness to your own feel as well: lighter sleepers and those on firm mattresses tend to want more give, while heavier sleepers often prefer a supportive layer that does not bottom out. With that settled, here are the six we rate.
1. Silentnight Airmax Mattress Topper
Every honest round-up needs a true budget option, and Silentnight, a familiar name in British bedrooms, provides it. The Airmax is a lightweight polyester topper built around breathability rather than deep contouring, adding a gentle layer of softness and airflow for very little money. It leads the six as the low-cost, low-heat choice, ideal if you find memory foam too warm or simply want to freshen up a serviceable mattress. It will not dramatically change a too-firm bed, and we would not pretend otherwise. At a budget price of around £30, it is hard to argue with. The Sixated take: the sensible pick for a guest bed or a quick, cheap comfort boost.
2. John Lewis Synthetic Soft Touch Washable Mattress Topper
The headline feature here is in the name: this John Lewis topper is fully machine-washable, which quietly solves one of the category’s biggest hygiene headaches. The synthetic filling adds a soft, cushioning layer without the heat of foam, and the ability to launder the whole thing makes it a natural fit for children’s beds, guest rooms and anyone sensitive to dust and allergens. It makes the six as the practical, hygienic choice. The trade-off is modest contouring compared with a foam topper. At a budget price of around £50, it is reasonable for the convenience. The Sixated take: buy it when ease of washing matters more to you than deep pressure relief.
3. Panda London Bamboo Memory Foam Mattress Topper
Panda London has made a name for itself in bamboo-based bedding, and its topper is a well-reviewed step into proper memory foam. The 5cm layer is infused with cooling gel and wrapped in a bamboo-blend cover, a combination aimed squarely at people who want foam’s contouring without its reputation for sleeping hot. It earns its place as the balanced mid-range all-rounder, adding noticeable comfort and a cooler-sleeping cover. If overheating is your main concern, also see our guide to the best sheets for hot sleepers. At a mid-range price of around £100, it is competitively placed. The Sixated take: a strong first choice if you want memory foam but worry about the heat.
4. Emma Memory Foam Mattress Topper
Emma became a household name through its bed-in-a-box mattresses, and its topper brings that same pressure-relieving foam at a far lower price than a full replacement. It is a sensible route if you like the idea of an Emma mattress but are not ready to replace the one you have, and the brand’s home trial lets you test it properly over several nights rather than a single lie-down in a shop. It makes the six as the easy upgrade for an existing bed. As with any memory foam, warmer sleepers should weigh the heat retention. At a mid-range price of around £120, it is fair for the comfort on offer. The Sixated take: a low-commitment way to borrow a popular mattress’s feel.
5. ViscoSoft Serene Hybrid Mattress Topper
ViscoSoft specialises in toppers rather than treating them as a sideline, and that focus shows in the Serene. It pairs cooling gel memory foam with an elasticated anchor band that wraps the mattress, directly tackling the most common complaint about toppers: the overnight slide. The gel foam adds contouring comfort while the secure fit keeps everything in place through the night. It earns its spot as the pick for restless sleepers and anyone whose previous topper refused to stay put. At a mid-range price of around £130, it is a considered buy. The Sixated take: the smart choice if a wandering topper has driven you mad before.
6. Simba Hybrid Mattress Topper
At the top of the range, Simba applies the hybrid thinking behind its mattresses to a topper. Alongside the foam sits a layer of the brand’s tiny Aerocoil conical springs, which add a responsive, supportive bounce and airflow that solid foam simply cannot match. The effect is close to giving an existing mattress a genuine hybrid upgrade. It closes the six as the performance splurge, the one to choose if you want the most sophisticated feel here and are prepared to pay for it. It is comfortably the dearest on the list, and that reflects the engineering. Dress the finished bed with a crisp linen bedding set and it feels genuinely hotel-like. At a splurge price of around £200, it is an investment. The Sixated take: the most transformative topper here, and worth it if support and airflow are your priorities.
Whatever you choose, protect the investment with a washable, breathable mattress protector over the top, which keeps the topper clean and extends its life considerably. Air a new foam topper for a day or two before use to let any manufacturing smell dissipate, and rotate it periodically so it wears evenly. A home trial, where offered, is well worth using, since comfort is personal and a few nights tell you far more than a showroom ever can.
Six toppers, from a £30 comfort layer to a spring-and-foam hybrid. Match the topper to the problem you are solving: breathable synthetic to freshen a decent mattress, memory foam for pressure relief, and a hybrid if you want to meaningfully change how the whole bed feels. Get it right and you will have transformed your sleep for a fraction of the price of a new mattress.