Deal with the room before spending more on the mattress
You need to tackle noise and unwanted light separately from the bed, because a mattress won't block either. In Liu and colleagues' 2021 integrative review, noise, and probably light, were associated with worse sleep across the studies reviewed. The evidence is emerging, the light association is less clear, and these are associations.1 Blackout blinds are my first choice for the room; I think they're a much more sensible purchase than another sleep gadget with an app and a charging cable.
Traffic deserves particular attention. Smith and colleagues' 2022 systematic review and meta-analysis found that the louder the traffic outside at night, the more people reported highly disturbed sleep.2 That covered aircraft, road and rail traffic, with moderate-quality evidence based on residents' self-reports. If passing vehicles are what you hear when you wake, extra mattress depth won't address that exposure.
Start with blackout blinds and close the bedroom door if household noise reaches you through it. An eye mask is an alternative if changing the window covering isn't practical, and earplugs are worth trying if you find them comfortable. Keep essential alarms audible. The friend who sleeps through bin collection day has no useful authority over what you find intrusive.
White noise is optional. Riedy and colleagues' 2021 systematic review found very low-quality evidence that continuous white or broadband noise improves sleep.3 Findings ranged from improvement to disruption, and the authors noted possible negative effects on sleep and hearing. My view is to try it only as a comfort preference, at a low volume, and stop if it makes settling harder. You don't need to acquire a taste for bedroom static.
A quiet, responsive bed can reduce three sources of disturbance
The right bed can reduce movement from your partner, avoid creaks and let you turn without struggling out of a deep hollow. Those are useful improvements if the bed itself wakes you. They won't silence snoring, however enthusiastically someone demonstrates the mattress with a glass of water.
Pocket springs compress individually, while a foam or latex layer damps movement. That combination helps keep a partner's turn on their side. An open-coil unit moves as one and passes turns across the bed, which is why pocket springs are my choice for a couple with a light sleeper. You can compare the shared-bed considerations in our mattresses for couples guide.
Memory foam is good at absorbing movement, but the deepest versions hold your shape after you move. Turning can feel like climbing out of quicksand, especially if you change position frequently. I favour a responsive hybrid for that reader: cushioning over pocket springs, with enough spring-back that you can roll over easily. Latex and springy foams are also worth trying. Memory foam feels warm, so if you already throw the duvet off, give that trade-off proper attention.
Sound needs its own check. A creak can come from a worn spring unit or a broken slat, while metal frames squeak at the joints. Tighten the bolts before blaming the mattress, and inspect the slats for damage. I prefer a divan because it's quieter than most frames. A new mattress over a loose joint is an impressive amount of shopping to avoid finding the Allen key.
When you try a bed, distinguish the bounce you feel from the sound you hear. A mattress can feel steady while the base creaks beneath it. You need both parts to behave well, and buying the thickest mattress in the shop won't repair the part underneath.
The first few nights are too soon to judge a new bed
Give yourself longer than the first three nights before deciding whether a new mattress suits you. A light sleeper has a particularly good reason to value a usable home trial: you need to find out what wakes you under ordinary sleeping conditions. The showroom is rarely available for your full bedtime routine, which is probably a relief to everyone involved.
There is evidence for a first-night effect in unfamiliar surroundings. In Tamaki and colleagues' 2016 laboratory study, one hemisphere slept less deeply on the first night and reacted more to unusual sounds with more arousals. The difference between hemispheres was gone on later nights.4 This was a study of volunteers in a sleep laboratory, not a comparison of mattresses, and it does not establish that everyone sleeps worse on a new mattress at home.
My buying rule is to assess the feel across a fortnight instead of treating an awkward opening night as the final answer. During that time, keep a short note of what you noticed: whether you felt your partner turn, for example, or whether you had difficulty rolling over yourself. A passing motorbike and a mattress hollow need different responses. You don't need a spreadsheet worthy of a mortgage application; a few words the next morning will do.
Read the returns terms before paying. Check whether you can receive a refund or only exchange the mattress, whether there's a required settling-in period, and who arranges collection. Keep the deadline somewhere you'll actually see it. A trial is useful only if you can follow its conditions and return the bed when it genuinely doesn't suit you.
Choose the tension for your body, then test the whole bed
Choose firmness around your weight and sleeping position, then check movement, turning and sound separately. Being easily woken doesn't automatically make you a soft-mattress person. Equally, there's no prize for enduring the hardest bed in the showroom.
I start with body weight because it changes how far you sink, then adjust for position. A lighter side sleeper needs enough give for their shoulder and hip; a heavier sleeper needs more resistance underneath. Ignore matching firmness words across brands, because their scales differ. Our firmness scale helps you compare the feel, but lying down is still necessary.
These are my shopping rules of thumb, not clinical thresholds. The weight boundaries are approximate.
| Your weight or sleeping habit | Where I'd start you | What to check when lying down |
| Under about 9 stone | A softer feel, especially on your side | Your shoulder and hip should sink a little without your middle dropping deeply. |
| Between about 9 and 18 stone | Medium-firm, with more cushioning for side sleeping | You should feel supported and be able to roll over easily. |
| Over about 18 stone | A firmer, thicker mattress with stronger springs | Your hips shouldn't sink into a deep hollow, and the edge should feel steady. |
| You change position frequently | A responsive surface over pocket springs | Turn in both directions and notice whether you need to push yourself out of the cushioning. |
| You and your partner need very different firmness | Split tension or zip-and-link | Each person should try their own side; one shared firmness can leave both of you uncomfortable. |
In the shop, spend a full ten minutes lying as you normally sleep. Then have your partner turn while you stay still, and swap places. This is one occasion when being deliberately restless is helpful. Notice whether you feel a small local movement or a roll across the whole bed.
Press down on a corner and listen, then check the base while someone changes position. A corner press can reveal a noise, although it won't reproduce a whole night of movement. At home, check the frame joints and slats as well. If a metal frame squeaks, tighten its joints and investigate any remaining noise before ordering a replacement mattress.
Your bedding belongs in the check too. Some waterproof protectors have a plasticky layer that rustles with every turn. Choose a quiet, breathable protector and feel it through the sheet before committing to it. Waterproofing is useful when you need it; sleeping on something that sounds like a crisp packet is less appealing.
For the room, keep it dark and comfortably cool, with the door closed where practical. Clear enough clutter that you can settle without looking at tomorrow's jobs. I'm relaxed about phones in bed generally, but if you're repeatedly waking and checking yours, put it outside the bedroom for this trial. You'll get a clearer sense of how you sleep without the screen or notifications.
If your partner snores loudly with gasps or pauses in breathing, they should speak to their GP. Speak to your own GP if you've had a month of broken sleep despite a quiet, dark room. Separate rooms are an option if disturbance continues, and they aren't a relationship failure, but address the snoring first.
Avoid these purchases and shortcuts
Leave open coil and loose metal joints out of the shortlist when one of you wakes easily. I don't care how attractive the headboard is; you have to sleep beneath it. Deep cushioning also needs a proper turning test, however convincing the slow-motion advert looks.
- Open coil for a couple with a light sleeper. The connected spring unit passes turns across the bed.
- A metal frame with loose joints. The squeak can come from the frame even when the mattress is sound.
- Deep memory foam if you turn frequently. The shape left behind can make changing position harder.
- A crinkly plastic protector. Rustling beside your ear can undo the benefit of a quiet bed.
- A decision based on the first three nights. Give yourself time to assess the mattress while staying within the return conditions.