Choosing a correctly sized mattress is one of the most important decisions you need to make when debating which one to buy. With so many options available, it can feel overwhelming. Our mattress size guide has everything you need to know to make that all-important decision.
Find your perfect fit…
Mattress Size Tips
Before we get stuck into the different size options available, read these tips...
- Remember to choose a mattress at least 10cm longer than the height of the tallest person using it.
- The width of the mattress should allow you to put both your hands under your head without your elbows touching the edge of the mattress.
- Always measure the space of your room to ensure your bed/mattress will fit comfortably.
- Your mattress size should always correspond to the size of your bed frame.
- Finally, European bed sizes differ from UK sizes, so ensure you check the dimensions of your bed before buying.
Explore our guide to all standard UK and European mattress sizes...
Small Single Size Mattress
What size is a Small Single size bed/mattress? (2’6 | 76 x 190cm)
Small single mattress dimensions are 76 x 190cm or 2’6 x 6’3. A small single mattress will fit narrower bed frames normally made for small children. This is the perfect size if you're short on space or your child has transitioned from a cot to their first bed.
Single Size Mattress
What size is a Single size bed/mattress? (3’0 | 90 x 190cm)
A standard sized single mattress is 90 x 190cm or 3’0 x 6’3. This is the perfect size for people who sleep on their own in a single bed or for older children and teens. Single sized beds are normally the first choice for smaller spare rooms, guest bedrooms or where space for a larger size bed is tight.
Best mattress for: single person.
Small Double Size Mattress
What size is a Small Double size bed/mattress? (4’0 | 120 x 190cm)
Small double mattress dimensions are 120 x 190cm or 4’0 x 6’3. Small double mattresses suit one person who likes a little extra sleeping space or two average sized adults who don't mind sleeping close to each other. A small double is also a good choice for smaller bedrooms where a double bed would be too big.
Best mattress for: one person and small bedrooms.
Double Size Mattress
What size is a Double size bed/mattress? (4’6 | 135 x 190cm)
Standard double size mattress dimensions are 135 x 190cm or 4’6 x 6’3. A double bed is a great option for couples as it allows for a reasonable amount of sleeping space. Double size mattresses are one of the most popular sizes as they provide enough space for two people to sleep comfortably without the need for a large bedroom.
Best mattress for: two people.
King Size Mattress
What size is a King size bed/mattress? (5’0 | 150 x 200cm)
King size mattress dimensions are 150cm x 200cm or 5’0 x 6’6. If you like sleeping with plenty of room, a king size mattress is an excellent option.
A king size bed and mattress allows you to sleep comfortably without disturbing your partner and will fit nicely into most double bedrooms. It’s always a good idea to check the measurements of your bedroom first to ensure a king size bed will fit with enough space to move around the room.
Best mattress for: two people and larger bedrooms
Euro Size Mattress
What size is a Euro size bed/mattress? (5’3 | 160 x 200cm)
European mattress sizes dimensions are 160 x 200cm or 5’3 x 6’6. Euro sizes differ from standard UK mattress sizes. If you need space and plenty of room in bed, a Euro size mattress is an excellent option. A Euro size bed and mattress allows you to sleep comfortably without disturbing your partner and will fit nicely into most double bedrooms.
Best mattress for: two people and double bedrooms.
Super King Size Mattress
What size is a Super King size bed/mattress? (6’0 | 180 x 200cm)
Super king dimensions are 180 x 200cm or 6’0 x 6’6. Super king mattresses provide the most sleeping space for you and your partner. If your kids or pets regularly try to squeeze in during the night or on lazy mornings a super king mattress is ideal.
Your bedroom is for sleeping so your bed and mattress should be the most important piece of furniture in the room. You’ll need a larger bedroom or a double bedroom with less furniture to make the most of a super king bed, so make sure you’re happy with your bedroom measurements and the amount of space left once a super king bed takes its place.
Best mattress for: two larger adults.
Ready to get shopping? Discover our memory foam mattresses to suit all sleepers and budgets to start your journey towards perfect sleep.