A good night’s sleep starts with the right mattress. From comfort and firmness to the different types of mattresses available, our guide covers everything you need to know about how to choose a mattress that feels just right.
Mattress sizes
Whether you’re choosing a single, small double, double or king size mattress, standard UK sizes are designed to correspond with the same-sized bed frame. If you already have a bed, it’s always worth checking the measurements before choosing your new mattress.
Shorty (kids) mattress dimensions
Made for smaller bed frames, a shorty mattress gives little sleepers a snug fit.
Standard size:
Length: 175cm / 5ft 9in
Width: 75cm / 2ft 6in
Single mattress dimensions
A single mattress is a versatile choice for children, teens and solo sleepers.
Standard size:
Length: 190cm / 6ft 3in
Width: 90cm / 3ft
Small double mattress dimensions
A small double mattress offers room to stretch, without taking up much space. Good for compact bedrooms.
Standard size:
Length: 190cm / 6ft 3in
Width: 120cm / 4ft
Double mattress dimensions
A double mattress gives two sleepers enough room, without overcrowding the bedroom.
Standard size:
Length: 190cm / 6ft 3in
Width: 135cm / 4ft 6in
King size mattress dimensions
A king size mattress offers extra width and length, so there’s more space to stretch out. A roomy choice for larger bedrooms.
Standard size:
Length: 200cm / 6ft 6in
Width: 150cm / 5ft
Super king mattress dimensions
Our largest standard option, a super king mattress creates a generous, luxurious sleep space.
Standard size:
Length: 200cm / 6ft 6in
Width: 180cm / 6ft
Mattress types
Mattress talk can be technical and confusing, so here’s a brief breakdown to help you understand the different types.
Pocket sprung mattresses
Each spring sits in its own fabric pocket, moving independently to support your body and reduce the effect of movement across the bed.
Open coil mattresses
Open coil mattresses use interconnected springs to create an even, supportive sleep surface. They’re a practical, great-value option for everyday comfort.
Memory foam mattresses
A memory foam mattress gently contours to your shape, creating a cushioned feel and helping to relieve pressure. Just the thing if you like comfort that feels close and cocooning.
Hybrid mattresses
Can’t decide between foam and springs? Hybrid mattresses combine different materials, often supportive springs with cushioning foam, to give you a balanced blend of comfort and support.
Orthopaedic mattresses
Orthopaedic mattresses offer a firmer, more supportive feel. They could be the best type of mattress if you prefer sturdy support rather than a softer, sink-in sensation.
Gel mattresses
Gel mattresses combine supportive comfort with temperature-regulating materials. A refreshingly clever choice if you tend to feel warm while you sleep.
Mattress firmness
From soft and sink-in to firm and supportive, the right mattress firmness can make bedtime feel even better. Your favourite sleeping position plays a big part in what feels comfortable. Explore the different firmness levels to find the best mattress for the way you sleep.

What kind of sleeper are you?
First of all, there are no rules. Everyone likes a different level of firmness depending on their personal needs. A lot of it is common sense. If you like a mattress with a lot of support, try something firmer. Habitat offers mattresses to suit medium to firm back support and spinal alignment. Soft mattresses are comfortable for different reasons, but won’t provide the same orthopaedic qualities.
Side sleepers
If you like to sleep on your side, you’ll want to opt for a mattress that’s on the softer side. Soft mattresses have a lot more give, allowing your shoulders and hips to sink comfortably into the mattress.
Back sleepers
For those who sleep on their back, a mattress with a medium firmness is your best choice. This type of mattress provides a good balance of comfort and support, without being too firm or too plush.
Stomach sleepers
Stomach sleepers should seek out a firmer mattress that keeps the body flat and the spine aligned. These mattresses don't have a lot of give, so there's no sinking into the mattress feeling.
Types of mattress covers

The right finish adds the final touch to your mattress. Choose a plain surface and layer on a mattress topper for extra cushioning, opt for quilted fillings for smooth comfort, or try a tufted design that keeps everything neatly in place and helps maintain the mattress’s shape. Then dress it up with bedding you love.
Good for you, good for the planet
Mattress care
Air your mattress when changing the sheets. Make sure to turn or rotate it as recommended in the care instructions to help keep it in shape. You can also add a mattress protector for everyday protection.
Recycling old mattresses
We can take away your old mattress when we deliver your new one. Our drivers will bring a recycling bag to place over it before we take it away and dispose of it responsibly.
Explore popular mattress brands
Frequently asked questions about mattresses
If you have allergies, look for a mattress with removable, washable covers or materials designed to be easy to keep clean. A memory foam mattress may be worth considering, but your comfort and support preferences matter too. Regularly washing your bedding and using a washable mattress protector can also help keep your sleep space fresh. Please consult a medical professional and seek their advice on the type of hypoallergenic mattress that's best suited for you.
Some people may find the responsive feel of a pocket sprung mattress comfortable, but there’s no one-size-fits-all choice for back pain. Consider your sleeping position and preferred firmness. If you have persistent back pain, seek advice from a healthcare professional on the type of mattress that's best for you.
If you share a bed with your partner, you'll need to pick a mattress that best suits both parties. Sleeping on a mattress made with motion-absorbing materials prevents movement from transferring throughout the bed so both you and your significant other can sleep undisturbed.
Think about your usual sleeping position, preferred firmness and whether you tend to feel warm at night, as these can help you compare the different types of mattresses. Measure your bed frame, set a budget and check the trial period, returns policy and guarantee before buying. The best mattress is one that feels comfortable, offers the right support and fits your bed and lifestyle beautifully.
There isn’t just one type of mattress used by every five-star hotel, but many choose pocket sprung or hybrid mattresses for their balance of comfort, responsive support and durability. These are often paired with soft comfort layers or a plush mattress topper to create that signature hotel-bed feel. For your own bedroom, choose the mattress type and firmness that best suits the way you sleep.
Neither is better for everyone; it depends on how you like to sleep. Sprung mattresses feel responsive and breathable, while foam mattresses contour to your body, cushion pressure points and absorb movement well. If you want the best of both, a hybrid mattress combines supportive springs with comforting foam layers.
Avoid choosing a mattress based on discounts, firmness or spring count alone, as the best mattress should suit your sleeping position, body and comfort preferences. Don’t forget to measure your bed frame or overlook practical details such as mattress depth, delivery access and your partner’s needs. Always check the trial period, returns policy and guarantee before you buy.
Not necessarily. While a slightly softer surface may cushion sensitive joints and relieve pressure, a mattress that is too soft can make movement difficult and may not provide enough support. Look for a comfortable balance of cushioning, support and sturdy edges, based on your sleeping position, mobility and personal needs.
Only flip a mattress if it’s designed for two-sided use, following the manufacturer’s recommended schedule. Many modern mattresses, including memory foam and pillow-top styles, shouldn’t be flipped but may benefit from regular head-to-foot rotation. Always check the care label first to help prevent damage and encourage even wear.
More bedtime reading
Bedding guide
Explore materials, sizes and tips to pick the perfect sheets for cosy nights.
Bedroom furniture and storage ideas
Explore bedroom furniture and storage ideas, with space-saving solutions to keep your room calm and organised.
Wardrobe ideas
Discover inspiring wardrobe design ideas, from compact and sliding wardrobes to versatile ones.
Why buy at Habitat?
Disclaimer
If you have back pain, seek advice from a medical professional on the most suitable mattress firmness for you. If you have any allergies, consider hypoallergenic mattresses that are designed to reduce common allergens. Check individual product details for specific features and consult a medical professional for recommendations.

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