Plain answers, no marketing.

Most "cooling" toppers are memory foam with a blue cover. What a topper can and cannot fix, the materials that genuinely run cool, what to spend, and when a topper is the wrong answer.

Graphite-infused memory foam is the one "cooling" foam that does something measurable. How it works, what it cannot do, and where it belongs in a build.

The two most common comfort layers behave in opposite ways with heat. What each one does under you at 3 am, what latex feels like if you are used to memory foam, and how to get the best of both.

A practical set-up for sleeping through perimenopause and menopause, from the people who make a mattress for it. Room, bedding, the partner problem, and where the mattress fits, without any promises a mattress cannot keep.

Half of "my mattress makes me sweat" is the protector, the duvet, the sheets or the room. Eight things to check in order, most of them cheaper than a topper, and the point at which the mattress really is the problem.

The cover is the layer touching you all night, and most are polyester. What Tencel, bamboo viscose and cotton actually are, how they handle heat and sweat, and why "unquilted" matters more than the fibre.

Most "cooling" mattresses are memory foam with a gel name. Here is what makes a bed run warm, what genuinely helps during menopause, and what to look for on the spec sheet.

Memory foam is warm by design, not by accident. What is happening in the foam, why gel does not fix it, and what to buy instead if you have found out the hard way.

Most people sleep on their side and most mattresses are not built for it. Why the hip and shoulder take the load, what pressure relief actually means, the mistake of going firm, and the numbers to look for.

A firm mattress that feels like a board is the most common mattress regret. Give it thirty nights, check the base, add the right topper, and know when a swap is the honest answer.

Over about sixteen stone, most mattresses are not built for you, and the answer is not simply firmer. The three numbers that matter, what wears out first, weight limits, and what to ask before you buy.

There is no standard, no test and no body behind the word. It usually just means firm, which is not what the evidence recommends for a sore back. What to look for instead, and the questions that get you a real answer.

The edge is where most mattresses fail first. What a steel-rod edge and a foam-encapsulated edge each do, which one you need, and why boxed mattresses only ever have one of them.

A zoned spring unit puts firmer springs under your hips and softer ones under your shoulders. What that does for your spine, how zones are made, why more zones is not better, and when zoning does not matter at all.

The advice to "buy a firm mattress for your back" is decades out of date. What the one decent trial found, why hard mattresses usually make things worse, and what to look for instead.

If one of you wants it firmer, you do not need two beds or a zip-and-link. What split tension is, how it is made, which sizes it works in and what it costs.

The fire-safety standard every UK mattress has to meet, in plain words: the four hazard levels, which one your bedroom needs, what the tests involve, and how makers pass it with and without fibreglass.

CMHR appears on British spec sheets and almost nowhere else. What the letters mean, what the foam does under the comfort layer, what densities are good, and how it differs from memory foam and reflex foam.

Depth is quoted everywhere and explains almost nothing on its own. What a good 22 cm mattress has that a bad 30 cm one does not, the depth each type of bed needs, and the sheets problem nobody mentions.

A mattress is decided by seven numbers that fit on one line each. What they are, the good ranges, and the questions that get them out of a seller who has not printed them.

Designed in Britain is not made in Britain, and some well-known brands make their standard ranges abroad. Where to look, what the marks mean, and the questions that settle it.

Mini pocket springs a few centimetres tall, layered above the main unit, are how a mattress gets to 3,000 springs. What they add to the feel, where they belong, and why they are not a substitute for a good main spring unit.

The top of a mattress is built one of three ways, and the words are used loosely. What a pillow-top actually is, how a euro-top differs, why "quilted" is the cheapest, and which suits you.

The two spring systems in UK mattresses behave completely differently. How each is made, what you feel, what wears out, and the one case where open coil is still the right buy.

Same rubber, two processes, different mattresses. How each is made, how each feels, natural versus blended versus synthetic, and which belongs where in a build.

Spring counts are quoted for a king size, more springs means smaller springs, and the wire gauge matters more than the count. How to read a spring spec without being sold to.

Fibreglass fire socks are common in cheap imported foam mattresses and a disaster if the cover comes off. What UK fire rules actually require, how to tell if your mattress has one, and what the alternative is.

The Dewsbury and Batley corner of West Yorkshire has made beds for over a century and still makes more of them than anywhere in Britain. What that means for what you can buy, and how to tell UK-made from UK-branded.

Density is the one number that predicts how long a foam mattress lasts, and almost nobody publishes it. What the numbers mean, what to ask for, and why a £299 mattress goes soft in three years.

Free returns are not free; they are in the price. How trials are funded, what happens to returned mattresses, what a trial does and does not tell you, and the alternative that costs less.

A king-size mattress is the awkwardest thing that ever goes up a staircase. The measurements that matter, the tight spots in typical British houses, what bends and what does not, and what to do if it will not go.

Most boxed mattresses reach full height in one to three days. What to do when you unbox it, why it smells, what is normal, and the point at which a short or lumpy mattress is a claim, not a wait.

The 14-day cancellation right, what a seller can and cannot deduct, the hygiene argument, faulty versus unwanted, what a "trial" adds, and the exemptions that really apply.

A mattress is the hardest thing in the house to throw away. The five ways to do it, what each costs, what happens to it afterwards, and why leaving it by the bins is a fine.

Almost every online mattress now arrives rolled in a box. What actually happens to foams and springs when a mattress is compressed, how long it takes to recover, which builds cannot be rolled, and why we deliver flat.

The hotel bed is a system, not a mattress. Sheets, the topper, the pillows, the tuck, the room, and finally the mattress itself, in the order that gives the most difference per pound.

The plushest mattress construction, and the most misunderstood. What a pillow-top gives you, what it costs you, the settling nobody warns about, and how to tell a good one from a soft polyester cushion.

Premier Inn made its bed a selling point and sells it to the public. What the mattress actually is, why it suits hotels, whether it suits you, and what to look for if you want the same thing at home.

Wool, cotton, silk, cashmere, horsehair, coir: the traditional fillings, what each one does, why they cost what they cost, and how to tell a natural mattress from a foam mattress with a wool word on the box.

Premier Inn, Travelodge and the big chains all publish or sell their beds. What they have in common, why a hotel bed feels the way it does, and how to get the same thing at home for less than a hotel charges.

Moving into a first flat means buying a bed with no idea what matters. What to spend and what to skip, frame or divan, the mattress that lasts into the next flat, and the things to sort before the van arrives.

Most halls beds are 3ft singles, newer blocks are 4ft small doubles, and a few are 2ft 6. How to find out before you buy bedding or a topper, what each size needs, and the questions to ask the accommodation office.

A halls mattress is firm, warm and wipe-clean. For most students a topper is the right fix, not a mattress. Which kind, what to spend, the protector everyone forgets, and when a topper is not enough.

Halls beds are built to survive, not to sleep on. Whether to buy a topper or a mattress, what size halls beds really are, what a decent single costs, and how to get it delivered on move-in day.

A rental mattress is slept on by a hundred strangers a year who write reviews. What to buy, how to protect it, when to replace it, and the two rules experienced hosts follow.

Sofa bed" covers four different things, and only one of them takes a normal mattress. How to tell which you have, the depth each can take, what to buy for a metal-action pull-out, and when to replace the whole bed instead.

The spare room is usually the smallest bedroom, and the bed size decides who can stay. The sizes, what each allows, room dimensions that make the decision for you, and why small double is the underrated answer.

What a landlord legally has to provide, what the fire label means, why a furnished let needs a different mattress from a home, how to protect it, and how to buy several at once.

Guests notice the mattress and never mention it. What a spare room needs, what sofa beds and guest beds can take, what Airbnb hosts should buy, and where the money stops making a difference.

A bedside crib attaches to your bed and depends on your mattress being the right height with a firm edge. What the crib instructions mean, what mattress depth works, why a soft edge is the problem, and the safe-sleep rules that sit above all of it.

Thirty centimetres of width is the difference between a good night and a great one, and between a bed that fits the room and one that eats it. Dimensions, the room sizes that decide, stairs, bedding costs, and split tension.

A zip-off cover you can put in the machine is genuinely useful for parents, pets, and anyone who has ever had a bad night. What is washable and what is not, the fire-barrier question, how to wash it, and why you still need a protector.

One of you turns forty times a night; the other counts them. The fixes that work, cheapest first: width, duvets, the mattress build that carries the least movement, and what to do when none of it is enough.

One of you gets up at five, one of you turns over forty times a night, one of you is feeding a baby at three. Why some mattresses carry every movement across the bed, and which builds do not.

One of you wants firm, one wants soft, one sleeps hot, one is heavier, and you have one bed. The three questions that settle most of it, the features built for couples who differ, and the compromise that satisfies nobody.

The first mattress you pick yourself is a ten-year decision made with no experience. What most people get wrong, the three things that decide it, what to spend, and why the everyday medium is nearly always right.

Getting in and out, sitting on the edge, sleeping lighter, running cooler or hotter, and not wanting to turn a heavy mattress. The practical things that change, and the spec that answers them, without any medical claims.

Moving is when mattresses get replaced, damaged or abandoned. Whether to move the old one, how to protect it if you do, sizes and stairs in the new house, and timing the new one so nobody sleeps on the floor.

The bed is the last thing in the flat that remembers. A practical, unsentimental guide to replacing it: what to buy when you are choosing for yourself for the first time in years, and what to do with the old one.

The base is the most common reason a good mattress fails early and the most common reason a guarantee is refused. Sprung divan, platform-top, slats, ottoman, adjustable: what each does to the feel, and the two rules that keep the guarantee.

Sweat, urine, blood, spilt tea, and the general greyness of years. What to use for each, what never to do to foam, how to dry it, and when cleaning is not going to save it.

Rotating is the one piece of maintenance that makes a mattress last, and the one everyone forgets. Rotate versus flip, the schedule, how to do it without hurting yourself, and the mattresses you must not turn over.

Three things go on top of a mattress and they get confused constantly. A protector keeps it clean, an encasement seals it, a topper changes how it feels. Which to buy, what to look for, and the one that most people are missing.

The seven-year rule, what actually wears out, how the build decides the lifespan, and a two-minute check you can do on your own bed this evening.