Koala Mattress King Single

I got this mattress in October 2025 as my old one was just not supporting like it used to. I have been using this bed for 8 weeks now. For context, I am 39 yr old female & not overweight. I have a back strain issue that is soft tissue injury… Read more

and getting better with time- especially off this bed!.

PROS: - Easy to buy. - I like that the covers are easily removeable and machine washable. - The bed is supportive but like lying on the floor.

CONS - The freight took a verrry long time to get to us.

- Sleep is disturbed because of pressure points on hips, I also can't find a decent sized pillow for said mattress either because my shoulders don't sink into it.

- The bed has been open and used for months now and it still smells very strongly of chemicals. They say it will deminish but it has not away at all! It was almost intolerable for the first week but I was desperate so I would sleep with the doona tucked in around my neck because my body heat would make the mattress release more fumes and if I smelled that hotter air it took my breath away and made me choke/cough. We also aired the mattress out for 2 days in 35c heat to try and get rid of the stench but it's still there.

- If the bed is too hard for you (which it very likely will be) you can't get any help from them other than a refund. They offer no support for things like softener layers or toppers.

- This bed is a ROCK! It's set to the medium setting and is supposed to be a medium bed but this is the most firm bed I've ever slept on that wasn't classed as a firm or super firm. You do not sink into it at all. I added a topper of latex (7cm) on it and it was better but still too firm for me.

- You CAN NOT take this mattress back to any old vinnies or lifeline store. We are expected to travel 4hrs one way to find their designated opshop to take it back to. This is NOT on their buying pages! Had it been made VERY clear and obvious which stores we need to take it to I would never have bought this bed. So now after the extra $250 on the topper we are expected to pay another $120 in fuel and 8 hrs of our time to get it to the place to get our refund. Disgusting!

- Synthetic top layer makes it trap heat but it's not too bad. I do sleep under the ac though. But to lay on it bare mattress its warm instantly..

Overall I really don't see what all the hype is about. I would NOT recommend this bed or any of their products to others.

Purchased to fit new king single electric bed required due to refux….so glad I did.. I enjoy the mattress on this bed as it is not so rigid yet gives me the comfort I need! I am now managing my reflux well! Very happy customer here! Show details

Had this koala mattress for 8 years very good mattress . But the new ad on tv for it went right past me . Thought it was about gay men not a mattress. Men making strange noises what’s it got to do with animals strange. L Show details

Great – We got our daughter a Koala mattress for her first bed and could not be happier with it. From ordering it all the way to sleeping on it, it's been great. Would highly recommend Show details

The final Koala conversion success story – The 3rd and final Koala mattress conversion in our house for our 18 yr old son is a total success. He's getting a much better night's rest and appreciates the comfort and support it gives him. Koala has a perfect score at our place! Show details

Perfect Mattress – Delivery was spot on and well informed. It was fore our teenage son so have to get it right from get go. Very happy with the mattress came as described and easy to purchase online. Son is enjoying it sleeps very well without any disturbance or discomfort. Should have bought this years ago. So bought a second one for ourselves. Show details

Great Mattress – So easy to order and to set up delivery. The mattress is very comfortable, it’s a little firm, but I like that. I use it on the top of a bunk bed and the dimensions are perfect and the mattress is durable. We also have a koala lounge and we recommend their products to anyone who wants to listen!! Show details

100% recommend!! – I have bought x3 of these mattresses a king for our bed and x2 king singles for both of my children. They love their beds and if I want to squeeze in with them there's enough room and it's comfortable for us both! We absolutely swear by our koala mattresses! Definitely recommend. Show details

Most comfortable mattress ever – The most comfortable mattress I’ve ever slept on. Perfect firmness - not too hard, not too soft. I fall asleep faster. No more tossing and turning to get comfortable. Show details

Great comfy great size for a toddler with enough space for a parent to share – Perfect size bed for toddler moving into their own room. Big enough for parents to share to read them a book etc. Very strong and so easy to put together Show details

Excellent service and great product – Bought this king mattress and bed frame for our son who outgrew his previous bed. He loves the overall comfort and has excellent nights sleeps since using it. Delivery details were as described and product is excellent as are all of our previous purchases from Koala! Show details

These guys are the best of the best – We purchased I king base 2 queen bases and 1 king single. Beds are a breeze to assemble Mattresses are amazingly comfortable They look great and are sturdy Can’t recommend them highly enough Show details

One mattress fits all! (Firm and soft mattress lovers) Genuine review, 2 years of use – I purchased a queen size and king single size koala mattress (cheapest one on the line). In terms of the mattress itself, I used to sleep on a rock solid mattress. So every other mattress I've tried on the market was too soft. Koala surprisingly hit a good balance between firm and soft. It's not springy and body doesn't sink like quicksand,… Read more

I'm not sure how they managed to achieve that medium but this was comfortable for both me and my partner. My partner likes soft cushy mattresses and I love hard mattresses.

Set up is super easy, and free 120 say returns, hassle free process. Amazinggggg customer service. Wouldn't hesitate to buy from koala again!

Update 2 years later: the mattress is still lovely and really comfortable, no regrets on this purchase!

Good night’s sleep – We bought this mattress to put in our spare room, as our adult son (6’2“) recently moved home again for a few months. The mattress arrived within a couple of days, and was easy to unbox, unroll and set up. He’s found it comfortable to sleep on, and a nice balance between firm and soft. After being out of the box for a week or so, it still has a strong “factory” smell, and the bedroom needs to be well ventilated. Show details

Perfect mattress for baby’s first bed, now we want one too – I couldn’t believe how quickly the mattress arrived after purchase. It was easy to set up. We purchased for moving baby from the cot to a big bed and wanted something that would grow with him but is also firm and safe for him to use now. Upon testing it out, we have decided it’s now more comfortable than our bed! Both my partner and I have back… Read more

pain and find this mattress much more comfortable and supportive. Make cuddling our little one to sleep a comfortable experience for us now too!

If only everything operated on Koalatime! – Great buying experience overall with the mattress arriving the same day I ordered it. Mattress is super comfy and seems to be good quality. Would definitely use Koala again Show details

Back pain gone! – I was under the impression that I would sag but the mattress turned out to be quite bouncy and removed all of my lower back pain. It doesn’t feel hot considering it’s a foam mattress. Would’ve preferred some edge support but overall great product! Show details

Sleeping perfection! – Second mattress from Koala and we love it even more! Selecting, ordering and communication is all easy with Koala. Delivery dates and times are accurate and the set up is easy. The comfort of these mattresses do not even compare. The second mattress bought was for our daughter and she is beyond happy with this, and so are we with everyone getting better night’s sleep. Will continue to recommend koala mattresses to everyone time and time again. Show details

Blown away by the comfort! – Firstly sale and delivery super easy. I even had to delay the delivery as I was waiting for the bed (elsewhere) which took 4 weeks. Mattress? For my daughter, it’s so easy to unpack but the comfort is amazing. I have snuck into bed with her a few times and it’s amazing, especially for my neck as I suffer from osteoarthritis in the neck. I’m devastated Koala don’t make super kings do my bed!!! You definitely won’t be disappointed! Show details

Just what the teenager needed! – The mattress is very comfortable - teenager sleeping well throughout the night. King single will be perfect for the high school years. Delivery was fast & easy. Took advantage of the Black Friday sales - great discount. Show details

10/10 This mattress has fixed all my sleeping problems! – I have had back problems since I was a child and have been seeing chiropractors and physios, trying different mattresses; you name it, nothing has helped. Until I tried a Koala mattress, no joke my back has never felt better! I’m a pilot in the Air Force so needless to say getting a good nights sleep is extremely important, as is having a back… Read more

that doesn’t hurt constantly; my only regret is not buying a Koala mattress sooner! Can’t recommend them enough! 10/10 comfort, but still firm and supportive - I love that you can flip the top of the mattress to adjust the level of firmness that suits you. The mattress hasn’t sagged, and it has withheld it shape really nicely, it makes going to bed something to look forward to every night!

Super Comfy mattress – Mattress is super comfy, and experienced the best sleep since using it :)

Excellent bed! – Amazing bed. Very comfortable both for back and slide sleeping. The flippable firmness is also really helpful.

Great Bed to sleep in – Firm yet not too firm, one of the best balanced mattresses I've ever slept on. Even my parents agree so! Show details

Great – So comfortable I fell asleep beside my son and wake up the next morning. Show details

Perfect for a “big boy” bed – Fast delivery and so easy to assemble. My son is thrilled with his new “big boy” bed. Show details

Teenager loving it – Super fast delivery and easy to put in place. Teenager very pleased and finding it super comfortable. Show details