Mumsnet Senior Content Editor, Rebecca, tests the Silentnight Ultragel Miracoil Mattress
What to look for when choosing a mattress
Choosing the best mattress for your bed can be overwhelming, but focusing on a few key factors helps. Here’s what to pay attention to when you’re mattress shopping.
Firmness: Side sleepers usually prefer medium to medium-soft, while back and stomach sleepers often go for medium-firm to firm support.
Material: From memory foam to pocket sprung, hybrid and latex, each type offers different benefits. For example, hybrid mattresses combine comfort and bounce, while foam mattresses provide great pressure relief.
Breathability: If you tend to overheat, the best cooling mattress or one with gel-infused layers will help regulate your temperature.
Trial and warranty: Look for a good sleep trial (at least 100 nights) and a solid warranty - it’s a big purchase and peace of mind matters.
Who’s sleeping on it: Consider the needs of your partner or your kids if it’s a children’s mattress you’re after. Motion isolation and edge support can be key for shared beds.
On a tight budget? See our best budget mattress picks for doubles under £400.
How to get a good deal on a new mattress
Buying a mattress doesn’t have to break the bank. To get the best mattress for your money, keep an eye out for seasonal sales (especially around bank holidays, Black Friday and Boxing Day). Most of the best bed-in-a-box mattress brands like Emma, Simba and Nectar offer regular discounts and bundle deals. You can often save more by buying a bundle with pillows or a mattress protector included.
Also, sign up for brand newsletters to be alerted about flash sales. Choosing a budget mattress doesn’t mean compromising. On the Mumsnet forums there are some excellent picks priced at under £400 for a double that are also well-reviewed by real shoppers.
How do I choose the right mattress for my sleeping position?
Choosing the right mattress starts with understanding your sleep style - side, back or stomach - because each position puts pressure on different parts of your body.
Side sleepers often benefit from mattresses with pressure relief at shoulders and hips, typically medium-soft to medium-firm foam or hybrid designs. Back sleepers usually prefer medium-firm mattresses that support the spine’s natural curve, while stomach sleepers need firmer surfaces to prevent the hips from sinking too far and straining the lower back. Research shows identifying your sleep style first makes mattress shopping easier and improves comfort once you buy.
Next, think about other preferences, such as how hot you tend to sleep and whether you share a bed. Memory foam often offers excellent motion isolation - useful for couples - but can trap heat; hybrid designs with springs and breathable foam balance support and airflow, which helps if you run hot at night.
Finally, consider trial periods and returns. Most reputable mattress brands offer generous home trials - 90 nights or more - so you can actually sleep on it before committing. Always check the warranty and returns policy before buying.
How long should a mattress last?
Short answer: Around seven to eight years for most people, sooner if you notice sagging or new aches.
No mattress lasts forever and while general guidance is seven to eight years, most sleep organisations like Bed Advice UK suggest several factors affect when you should replace your mattress. Wear and tear, body changes and hygiene levels all play a part. Visible dips, allergies flaring or waking with stiffness are good cues to upgrade. Your type of mattress will also determine how long yours will last - with some memory foam ones lasting 10 years or longer.
That said, look for warranties of 10 years or more and check trial policies so you can road-test at home. (See our picks for generous trials/warranties below).
What’s the best mattress to buy?
The Simba Hybrid Pro takes the crown as the best mattress overall for 2026. The brand is loved for its incredible comfort and longevity, helping Mumsnet users get a great night's sleep.
On a budget? The Bensons Simply Support Pocket sprung mattress is hard to beat. It’s one of the best budget mattresses we’ve tested and seen praised by Mumsnet users. The firm feel helps with spinal alignment, while the plush, quilted cover and generous 28cm depth offer a more luxurious sleep surface than you’d expect at this price.
Ultimately, the best mattress depends on your sleep style, budget and whether you need help with back pain, overheating or motion transfer.
Which mattress types are best for co-sleeping?
For couples and co-sleeping families, you’re looking for two things: strong motion isolation so you don’t feel every roll-over and reassuring edge support so no one clings to the brink.
Hybrids that pair pocket springs with foam comfort layers usually strike the best balance, damping movement without feeling swampy. All-foam models can be brilliant at isolating motion too, provided the base foam is dense enough and the edges don’t give way when you sit. If one of you sleeps hot, lean towards a breathable hybrid or a cooling foam with a washable cover.
The set-ups that tend to disappoint are basic open-coil mattresses, which transmit movement across the surface and very bouncy latex builds without zoning, which can ping energy from one side to the other.
What’s the best mattress for back pain?
When it comes to back pain, the best mattress is one that offers a balance of comfort and support to keep your spine aligned throughout the night, like the Dormeo Octasmart Premium Hybrid Deluxe Mattress.
Many sleep experts recommend a hybrid mattress or a firm pocket sprung mattress for back support, as these tend to contour to your shape without sinking too deeply. If you’re looking for pressure relief around your hips or shoulders, a memory foam mattress can also work wonders as long as you opt for one with medium to firm support to avoid that “stuck” feeling.
For chronic back issues, an orthopaedic mattress or a super firm mattress can provide that extra structure needed to prevent morning aches.
If you suspect you need extra rigidity, our best firm mattress guide explains when firm beats medium-firm.