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Crown Posture Bedding EssentialSupport Mattress, Medium
King Single · 7 sizes available
$1,199$599save 50%$1,199$599save 50%$1,199$599save 50%$1,199$599save 50%$1,199$599save 50%$1,299$649save 50%$1,299$649save 50%
King Single Mattress
A king single mattress is 107cm by 203cm, is a great choice for growing teens or a solo adult sleeper if you’re limited on bedroom space. It's a practical choice when a standard single feels too small, but a double isn't quite right. Explore your options with personalised guidance from Forty Winks bedMATCH®.
About king single mattresses
Choosing a king single mattress can be a smart way to plan for the years ahead. With more room to grow than a standard single, it's an option worth considering when upgrading a child's bedroom or furnishing a space for a taller solo sleeper. Discover king single mattresses across a range of brands, materials, and comfort feels at Forty Winks.
What size is a king single mattress?
A king single mattress is 107cm wide by 203cm long (1070mm by 2030mm). Compared to a single mattress, a king single offers an extra 15cm in both width and length. It's also 15cm wider than a long single mattress, although both share the same 203cm length.
Considering a double instead? While a double mattress is 31cm wider, it's also 15cm shorter than a king single. That extra length is worth keeping in mind if you're buying for someone taller.
As well as the needs of the sleeper, consider the room size when choosing your next mattress. A king single can generally fit within a 3m x 3m room, though make sure to take into consideration the layout of the room, and any door opening or furniture that may impact how the bed fits within the space.
If you’re still unsure which mattress size is right for you, check out our bed size guide to compare the king single to various mattress sizes.
Who is a king single mattress best for?
A king single mattress is a popular choice for growing teenagers who need more room than a standard single. The additional length can be particularly useful as they get taller, potentially making it a more practical option for the years ahead.
It's also worth considering for adults who sleep alone and prefer a longer mattress. At 203cm long, a king single offers the same length as a queen mattress, without requiring as much bedroom space. For smaller bedrooms or guest rooms, a king single can offer a useful balance of sleeping space and room for other furniture.
If you're choosing between a king single and a double, think about what matters most: extra length or extra width. A king single gives taller sleepers more legroom, while a double provides a wider sleeping surface.
How do I choose the right king single mattress?
When choosing a king single mattress, think about who'll be sleeping on it and what feels comfortable to them. A mattress for a growing teenager may need different consideration from one chosen for an adult.
Mattress comfort is personal. Some sleepers enjoy a plush, cushioned feel, while others prefer something firmer. But comfort is only part of the picture. The right mattress should also provide support suited to the sleeper's individual needs.
Not sure where to start? Our Forty Winks Sleep Advisors can help you compare different mattress options. For eligible sleepers, bedMATCH® uses science-backed technology to help identify suitable support levels, making it easier to narrow down the choices.
Visit your local Forty Winks store to explore the king single mattress range and find a feel that works for you.
What bed fits a king single mattress?
A king single mattress should be paired with a compatible king single bed frame or bed base.
If you’re updating a teenager's bedroom, a king single bed with built-in storage can help keep bedding, clothes, and other essentials organised. For a guest room, consider a simple bed frame that leaves enough space for other furniture.
Explore our range of king single bed frames and king single bed bases to find an option that suits your mattress and bedroom layout. Before buying, check the bed frame's external dimensions and your mattress manufacturer's support requirements.
Comfort for every sleep style
Our king single mattresses offer comfort levels from soft and snuggly to a firm feel. Find the perfect sleep experience for you.
Plush: Like sleeping on a marshmallow cloud.
Medium: The sweet spot of support and softness.
Firm: Solid support for a no-fuss slumber.
Ultra Firm: Maximum support for growing spines or heavy-duty dreamers.
Whatever your vibe, we've got the best king single mattress to make your nights amazing.
Trusted brands for king single mattresses
Find your perfect match among the top mattress brands we proudly offer. From advanced technology to premium materials, these brands deliver exceptional support and comfort for your king single mattress:
With these trusted brands, you're spoilt for choice. Whether you're looking for a plush or firm king single mattress, you can find the best fit for your needs at Forty Winks.
Forty Winks bedMATCH®: Mattress shopping made easy
Finding your perfect match is a breeze with our innovative Forty Winks bedMATCH® technology, say goodbye to all the guesswork! Here's how it works:
Lie Back: Visit a Forty Winks store and relax on our special Forty Winks bedMATCH® profiler bed.
Get Measured: In minutes, it analyses over 1,000 data points like your sleep position and pressure points.
Find Your Match: See a personalised list of mattresses tailored to your needs.
Try It Out: Test the recommendations in-store and feel the difference for yourself.
Let Forty Winks bedMATCH® take the stress out of choosing a mattress and help you wake up feeling refreshed and ready to take on the day. All you have to do is visit us in-store, we'll do the rest.
Quick Ship delivery and mattress recycling
Got big sleep plans? Our Quick Ship service can deliver your dream mattress by the next business day, so you're ready for guests or a last-minute movie marathon.
Got an old mattress to ditch? We've partnered with trusted mattress recycling companies to ensure your old mattress is disposed of responsibly. Available in select areas, this program helps you upgrade guilt-free while keeping your carbon footprint in check.
Caring for your king single mattress
Show your mattress some TLC, and it'll keep you cradled in dreamy comfort for years to come:
Use a Mattress Protector: Keep it fresh and shielded from spills and messes.
Rotate It: Flip it around every few months for even wear.
Clean It Up: A quick vacuum will keep allergens and dust mites at bay.
Add a Topper: Layer on extra softness and extend the life of your mattress.
With these simple tips, your mattress will stay comfy and supportive for the long haul. For more tips and tricks, explore our mattress care and maintenance guide.
Dream up your perfect bedroom
Your king single mattress deserves a dreamy setup. Pair it with one of our kids' beds or stylish bed frames, and you've got a bedroom that's as fun as it is functional. Check out these extras to take your room to the next level:
Kids' Beds: Fun designs that'll make bedtime the best time.
King Single Bed Frames: From sleek and modern to classic and cosy, find your style.
Storage Options: Keep clutter out of sight and your space looking fab.
King Single Mattress Protectors: Keep your mattress spotless and fresh for longer.
With these essentials, your room will be ready for sweet dreams every night.
A standard Australian king single mattress measures 107cm wide by 203cm long (1070mm x 2030mm). It offers extra width and length compared to a standard single mattress, without taking up as much floor space as a double.
King single mattresses are ideal for growing teenagers, taller solo sleepers, and adults who want extra room without a larger bed. The additional length makes them particularly useful for sleepers who find a standard single mattress too short.
The right firmness depends on what feels comfortable to you, but it's important to consider support, too. Come in store to try Forty Winks bedMATCH®, which assesses your body and recommends suitable support levels and speak with a Forty Winks Sleep Advisor to find a mattress suited to your individual needs.
Not necessarily. A king single mattress can feel plush, medium, or firm depending on its materials, comfort layers, and support system. Two mattresses of the same size can offer very different sleeping experiences. Check out our mattress feel guide for more information on the different comfort levels.
A king single mattress measures 107cm x 203cm, making it 15cm wider and 15cm longer than a standard single mattress (92cm x 188cm). That extra space makes a king single worth considering for growing teenagers and taller sleepers.
Both king single and queen mattresses measure 203cm long. The difference is width: a king single measures 107cm wide, while a queen measures 153cm wide, making a queen 46cm wider.
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Let technology guide you on which mattress is best for you
Forty Winks Fitzroy
Forty Winks Fitzroy now calls Hoddle Street in Abbotsford home, with more than 50 mattresses and bedroom suites on display. A trusted Sleep Advisor can take you through Forty Winks bedMATCH®, help determine your individual postural support needs, and make a big showroom feel much easier to navigate. The store also offers mattress removal, assembly, bedroom furniture, pillows, protectors, and Manchester. Parking is limited, with nearby options on Turner Street and Hoddle Street after 10:00am where permitted, while public transport is close by.
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