Do you need a mattress topper?#
A mattress topper adds a comfort layer above your existing mattress. Common reasons to use one:
- Your mattress is too firm: A soft topper adds the comfort layer without replacing the whole mattress.
- Your mattress is ageing: A topper can mask mild firmness changes in an older mattress, extending its useful life by 1–3 years.
- You want temperature control: Wool or cooling gel toppers can modify the thermal properties of your mattress.
- Guest room upgrade: A quality topper on a guest room mattress is more cost-effective than replacing the whole mattress.
A topper cannot fix a deeply sagging mattress or one with broken springs, that requires replacement. But for a mattress that's structurally sound but simply too firm or beginning to feel tired, a topper is an effective solution.
Topper types explained#
Memory foam toppers#
The most popular type in the UK. Memory foam toppers add pressure-relieving contouring above your existing mattress. Look for at least 4 cm depth and density of 40 kg/m³ or above for longevity. Thinner or lower-density foam toppers compress quickly. Best for: side sleepers wanting more pressure relief; those who find their mattress too firm.
Latex toppers#
Natural or blended latex toppers are more responsive and breathable than memory foam. They add cushioning without the slow-sinking feel of memory foam, and sleep cooler. More expensive than foam, but longer-lasting. Best for: hot sleepers; combination sleepers; those who want cushioning without memory foam's slow response.
Wool toppers#
A layer of wool (or wool and cotton) adds temperature regulation and a traditional, breathable surface feel. Wool is a natural temperature buffer, it wicks moisture and regulates heat in both directions. Less cushioning than foam or latex, but outstanding for temperature management. Best for: hot sleepers; those who want natural materials; adding warmth in winter without overheating in summer.
Microfibre/pillowtop toppers#
Filled with synthetic microfibre or down-alternative material, these add a plush surface feel similar to a hotel pillowtop. They compress relatively quickly (2–3 years) but are the most affordable option and easy to launder. Best for: guest rooms; adding temporary softness; budget toppers.
Top UK picks#
Best memory foam topper: Emma Mattress Topper. Emma's 7 cm Airgocell foam topper is one of the most breathable foam toppers on the UK market. Available in all standard UK sizes. Better temperature performance than standard memory foam toppers.
Best latex topper: The Natural Bed Company latex topper. Natural Talalay or Dunlop latex in multiple firmness options. The most durable and breathable topper option available in the UK.
Best wool topper: John Lewis wool topper. A well-priced natural wool topper available at John Lewis in all standard UK sizes. Machine-washable cover.
Best budget topper: Silentnight Airmax. A well-reviewed mid-market microfibre topper available widely in the UK for under £50 for a double. Not a long-term solution, but good for guest rooms and short-term needs.
Before you buy a topper: is the mattress worth it?#
A topper fixes a mattress that is too firm. It does not fix one that is sagging, too soft or worn out, and at the budget end a new mattress costs the same as a good topper.
| Model | Type | Depth | Feel | Support | Comfort | Price (double) | Why it is here |
|---|---|---|---|---|---|---|---|
| Westwood Memory Foam | Foam | 18cm | Medium | 7.8 | 8.0 | £109 | Replaces a tired guest mattress for topper money |
| The Saffron Comfort Deep | Foam | 23cm | Medium | 8.3 | 8.5 | £174 | 23cm foam; a whole medium mattress for £174 |
| Superior Cashmere | Foam | 23cm | Medium | 8.5 | 8.8 | £198 | The sub-£200 mattress we would choose over any topper |
Prices are for a double at the time of writing (September 2026), using the sale price where the brand runs a permanent one. Full scores are on each review page. We may earn a commission if you buy through our links, at no extra cost to you; it never affects a score.
The quick test: lay a broom handle across the bed where you sleep. A dip over 2–3cm means the mattress is sagging and a topper will follow it. Wake with hip or shoulder pressure on a firm, flat mattress and a 5cm topper is exactly right. Our toppers guide has the full decision.
Frequently asked questions#
What thickness of mattress topper is best?#
5–7cm for a noticeable change on an adult bed. Under 4cm is a mattress pad and changes little; over 8cm is unstable and hard to fit sheets over.
Memory foam or latex topper?#
Memory foam for the most pressure relief and motion damping, at the cost of warmth. Latex for a cooler, bouncier surface that lasts longer, at a higher price. Wool for temperature regulation with little change in feel.
How long does a mattress topper last?#
Two to three years for low-density foam; four to five for dense memory foam (50kg/m³ or more) or latex. Toppers wear faster than mattresses because they have no support core beneath them.
Can a topper make a mattress firmer?#
Not meaningfully. Toppers add cushioning, not structure. If your mattress is too soft or sagging, replace it; a firm topper on a soft base still sinks.
Related reading#
- Do mattress toppers work? – the full decision guide
- Topper or new mattress? – the cost comparison
- Best mattress protector UK – goes over the topper
- Best mattress for a guest room – where a budget mattress beats a topper
- How long does a mattress last? – is the mattress underneath worth topping?
