How to Choose the Right Mattress

Choosing the right mattress is one of the most important decisions you can make for better sleep, better comfort, and better health. With over 20 years of experience in the bed industry, I’ve helped thousands of people find the perfect mattress for their needs — and the truth is, the right choice can completely transform how you feel each morning.

But with so many options available, it’s easy to feel unsure about where to start. Do you need a firm mattress or a soft one? What mattress size is best for your room and your sleeping habits? Should you choose memory foam, pocket sprung, or a hybrid mattress? And how often should you replace your mattress to keep your sleep quality high?

In this guide, we’ll break everything down in simple, clear steps. You’ll learn:

• What mattress size you actually need

• What firmness level is best for your body and sleep position

• The different types of mattresses and how each one supports your body

• How often to change your mattress to maintain proper comfort and hygiene

By the end, you’ll know exactly what to look for, what to avoid, and how to choose a mattress that supports your back, improves sleep quality, and fits both your lifestyle and your budget.

mattress that supports your back, improves sleep quality, and fits both your lifestyle and your budget.

What Size Mattress Do You Need?

Choosing the right mattress size is important for your comfort and for how well the bed fits in your room. The size you choose affects how much space you have to move, whether you sleep alone or with a partner, and how the room feels overall.

Below is a simple guide to UK mattress sizes:

A Single mattress is most common for children, teenagers, or small bedrooms. It gives enough space for one person but may feel tight for adults who move a lot in their sleep.

A Small Double is a good choice for single adults who want more room without taking up too much floor space. It works well in medium-sized bedrooms.

A Double mattress is the most popular option in the UK. It suits most couples and fits well in standard bedrooms, giving enough room for two people without filling the whole space.

A King mattress offers extra width and length, making it a better choice for couples who want more space to stretch out. It’s also a comfortable option for taller people thanks to the extra length.

A Super King mattress provides the most space of all. It feels very roomy and works best in large bedrooms. It’s ideal for anyone who prefers a lot of sleeping space or has children who sometimes join them in bed.

What Mattress Firmness Do You Need?

Choosing the right mattress firmness is important because it affects how comfortable you feel and how well your back is supported while you sleep. The right firmness helps keep your spine in a natural position so you don’t wake up with aches or pains.

Mattresses usually come in four main firmness levels: soft, medium, medium-firm, and firm.

A soft mattress feels gentle and cushioned. It is good for people who sleep on their side because it lets the shoulders and hips sink in a little. This helps reduce pressure, but a soft mattress may not support your back if you sleep on your stomach or your back.

A medium mattress is a good all-round option. It suits most people because it gives a mix of comfort and support. If you move around a lot at night, a medium mattress usually feels comfortable in different sleeping positions.

A medium-firm mattress gives more support and is one of the most popular choices. It is great for people who sleep on their back or those who often get back pain. It keeps your spine straight without feeling too hard.

A firm mattress feels solid and supportive. It is often better for people who sleep on their stomach or for heavier sleepers, as it stops the body from sinking too deeply into the mattress.

The best way to choose your firmness is to think about how you sleep:

• Side sleepers usually prefer soft or medium.

• Back sleepers are most comfortable on medium-firm.

• Stomach sleepers need a firm mattress.

• People who change positions often do well with medium or medium-firm.

Your body weight matters too. Lighter people often prefer softer mattresses, while heavier people usually feel better supported on medium-firm or firm options.

The right firmness is the one that keeps you comfortable, supports your back, and helps you wake up feeling fresh and pain-free.

What Are the Different Types of Mattresses?

We offer several types of mattresses, and each one is designed to give you a different level of comfort and support. Understanding how each mattress works can help you choose the one that feels right for your body and the way you sleep.

Our memory foam mattresses gently mould to your body. They soften with your body heat and give excellent pressure relief, especially around the shoulders, hips, and lower back. This type is a great choice if you want a cosy, hugging feel or if you share the bed and want to reduce movement from your partner.

Our pocket sprung mattresses use hundreds of individual springs, each placed inside its own fabric pocket. These springs move independently and support your body evenly. They help keep your spine in a natural position and also allow good airflow, making them a cooler option for warmer sleepers.

We also have hybrid mattresses, which combine pocket springs with layers of foam. This gives you the softer comfort of foam with the strong support and bounce of springs. Hybrid mattresses suit most sleeping styles and offer a balanced feel that many people find comfortable.

Our orthopaedic mattresses are designed to give extra firm support. They keep your back well aligned and are often helpful for people who experience back pain or prefer a firmer sleeping surface.

We also offer latex mattresses, which feel supportive and slightly bouncy. Latex is durable, breathable, and naturally resistant to sagging. It’s a good option if you want a mattress that keeps its shape and feels fresh for many years.

Each mattress type has its own benefits, but the best one for you depends on how you sleep, how much support you need, and what feels most comfortable to your body. We provide a range of options so you can choose a mattress that helps you sleep better, stay supported, and wake up feeling refreshed.

How Often Should You Replace Your Mattress?

Even the best mattress doesn’t last forever. Over time, it loses support, becomes less comfortable, and may start to affect your sleep. On average, you should replace your mattress every 7 to 10 years, but this can vary depending on the type of mattress you have and how well you look after it.

A good way to know if it’s time for a new mattress is to pay attention to how you feel in the morning. If you wake up with back pain, stiffness, or feel more tired than usual, your mattress may no longer be supporting you properly. You might also notice sagging, lumps, or dips in the surface, which are signs the mattress has worn out.

Another clear sign is if you sleep better in a hotel bed or someone else’s bed. This often means your own mattress is no longer giving the comfort and support your body needs.

Memory foam and hybrid mattresses usually last around eight years, while pocket sprung and latex mattresses may last a little longer. However, all mattresses eventually lose their shape and firmness.

Keeping your mattress clean and rotating it regularly can help extend its life, but once it stops feeling supportive, it’s time to think about replacing it. A new mattress can greatly improve your sleep quality, support your back better, and help you wake up feeling refreshed instead of sore.

Why Choose Your Mattress From ComfyBedss

When you choose your new mattress from ComfyBedss, you’re choosing quality, comfort, and a service that puts your sleep first. We offer a sleep trial, giving you time to test your mattress at home and make sure it feels right for your body. Every mattress also comes with a minimum 3-year guarantee, so you can buy with confidence.

Our two-man room-of-choice delivery makes everything easy and stress-free. Whether you’re upgrading to a new hybrid mattress, looking for better back support with one of our orthopaedic mattresses, or pairing your sleep setup with a divan bed or ottoman storage bed, we’re here to help you create a bedroom that’s comfortable, supportive, and well organised.

Explore our full range of mattresses, bed frames, and storage beds to find the perfect match for your home and your sleep needs.