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King Size Vs Super King: Which is Right for You?

Buying a new bed is a big commitment. Not only are you investing your hard-earned cash in a product you need to rely on for a good night's sleep, but you're also committing to a...

Buying a new bed is a big commitment. Not only are you investing your hard-earned cash in a product you need to rely on for a good night's sleep, but you're also committing to a purchase that will be with you for the next 7-8 years or more. So, when it comes to choosing between a king size and a super king bed, which option is the right fit for you?

Size Matters: King Size vs Super King

When purchasing a new bed, size is a crucial factor to consider. You need to ensure that you have enough space in your bedroom to accommodate the bed and give you and your partner or bedfellows enough room for a comfortable sleep. So, let's compare the sizes of king size and super king beds.

A king size bed frame and mattress measure approximately 150cm in width x 200cm in length. On the other hand, super king beds are a bit larger, measuring at 180cm in width x 200cm in length. This means that super king beds are 30cm wider than king size beds.

To put it into perspective, a standard single mattress is 90cm in width and 190cm in length. So, a super king mattress is the same width as two single mattresses laid side by side, while a king size mattress is 30cm smaller in width than two single mattresses. However, both king size and super king mattresses measure 200cm in length, which is 10cm longer than a single mattress.

A family of four squashed onto a king size mattress. Fig.1: A family of four squashed onto a king size mattress.

Why Size Matters for a Good Night's Sleep

When choosing a new bed, size really does matter. No matter how comfortable a mattress may be, if it is too small, it can negatively affect the quality of sleep you achieve. It's important to remember that your bed and mattress need to accommodate not only you and your partner but also any kids or pets who may join you during the night. You need enough space to move and switch positions comfortably.

A mattress that is too small can result in issues such as "roll together," feeling too hot, overcrowding, uncomfortable positions, and even the risk of falling off the bed. This becomes even more crucial if you sleep with a partner who takes up a lot of space. In fact, a study found that 21% of married people feel that their partner takes up too much space in bed.

So, in terms of bed size, bigger is generally better. The larger the bed, the more space you and your partner will have for a restful sleep. If you have enough space in your bedroom, it's recommended to go for a super king bed. However, a king size bed still offers adequate space for two sleepers, surpassing the space offered by a double bed.

Factors to Consider: King Size vs Super King

If you're trying to decide which size is right for you, here are some key factors to consider:

  • Measure your space: Measure the available space in your bedroom and ensure it can accommodate the bed size you have in mind. Every inch counts, and you don't want to end up sacrificing comfort or functionality.
  • Calculate your budget: Determine your budget for the bed and mattress. Look closely at your finances and set an affordable budget before starting your shopping journey.
  • Consider payment options: If budget is a concern, explore payment options offered by retailers. At Bensons, we offer interest-free financing subject to credit checks for orders over £500, as well as Klarna pay-in-3 for more manageable payments.
  • Think about who shares your bed: Consider your sleeping habits and who shares your bed. If you have children or pets who join you during the night, a larger bed may be more suitable to accommodate everyone comfortably.

Considering these factors will put you in a better position to decide the right bed size for you in the battle of king size vs super king.

Choose What's Right for You

Ultimately, the bed size you choose should depend on your space, sleep requirements, and budget. While bigger is generally better, it's not a necessity for everyone. Your personal situation and preferences will play a role in your decision-making. Solo sleepers may feel that an oversized bed is unnecessary, but if you desire the extra space and your bedroom can accommodate it, go for it.

There's no right or wrong answer in this conundrum. As long as you can justify your choice and it meets your needs, you've made the right decision for you. At Bensons, we believe in providing options to suit every individual, offering a wide range of mattresses in different sizes, including king size and super king.

King Size and Super King Mattress Options

At Bensons, we offer a vast selection of mattresses from top brands in various sizes, including king size and super king. We cater to all types of sleepers, whether you prefer plush memory foam, hybrid mattresses combining springs and foam, pocket sprung mattresses for targeted support, or orthopaedic mattresses for healthy spine alignment. We also have latex and open coil mattresses for practicality and affordability.

We understand that each person's sleep needs are unique, which is why we strive to provide an extensive variety of options to ensure you find the ideal mattress for your comfort.


  1. YouGov: Sleep Habits of Americans Survey