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King Koil is a mattress brand that was founded in 1898. It started selling innerspring mattresses, but over the years has expanded to foam mattresses as well. You can find King Koil mattresses across the globe in local retailers. Some of their mattress models may be advertised under other names than are found below. Overall, they make comfortable mattresses in a variety of price points, but there were some concerns about durability with some models.
Suffer from tossing and turning? It could be because your current mattress doesn't support and align the spine properly. That's where Level's TriSupport™ technology can help. Their technology is a marvel in zoned support with a high-end all-foam design made in the USA. While the shoulders and hips are relieved of pressure, the middle spine is supported properly. With a patented design that is supported by chiropractors, Level Sleep is worth consideration for back and side sleepers needing well-aligned support.
Based on our aggregated reviews and our scoring method, we recommend Level Sleep in this match up!
See Our Full Review of Level
King Koil: 8.4/10
King Koil: 8.5/10
King Koil: 8.2/10
No Back Pain:
King Koil: 8.5/10
King Koil: $549-$3399
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Looking into customer satisfaction is an ideal way to focus your search for the right mattress. Overall, sleepers feel mixed emotions when it comes to these mattresses. Some found them to be a super comfortable sleep, but others experienced restlessness. Look on below to see what customers say in their own words.
You may think supportive mattresses are always firm mattresses, but when we write about support, we are describing mattresses that support the back independent of firmness. These mattresses are well rated at giving support to the average sleeper, but there is the occasional complaint about the feel.
Most customers find that this mattress has good edge support, which preferred for those that like to sit on the edge of the bed or like to lie towards the sides of the mattress.
Bowling Ball & Density Tests
The bowling ball test is useful for discovering if a mattress is evenly supportive. These mattresses are supportive to most sleepers overall, but some with wide hips and shoulders may experience some discomfort.
These mattresses get mixed reviews from customers on lasting comfort. We all want to find the perfectly comfortable durable mattress that lasts over 10 years, but sadly, not all mattresses will last as long as you would hope. If you are considering buying a mattress with mixed reviews on durability, do one last review of the return and warranty policies so you are secure in your purchase.
Everyone wants to get to the bottom of which mattresses are best rated, but it isn't easy from just browsing online. Customers are very happy with these mattresses overall according to our analysis. Although you may not experience the same excitement after buying, this provides a solid foundation to look into this brand further. Read on!
Everyone needs better support while sleeping -- it is the difference between waking up refreshed and waking up with terrible back pain. These mattresses provide some of the best support for the spine available on the market.
Amazing edge support is the difference between sleeping wherever you want on your bed or only being able to sleep comfortably in the middle. Luckily, these mattresses offer great and lasting edge support.
Bowling Ball & Density Tests
The bowling ball test is a fun test that reviewers like to do to measure the firmness of a mattress. In addition to firmness, the bowling ball can also measure evenness of support across the surface. These mattresses will offer even resistance, while still remaining comfortable and aligning the spine.
Like all technology, we as customers want products that will last. That said, it can be difficult to know where to find the lasting quality through all the noise of Internet shopping. Even our clothing and bedding doesn't last as long as it used to. All that said, customers say that these mattresses are some of the most durable for the price. They should last at least 7 - 12 years based on normal wear and tear for most sleepers. Also, if you don't like the way your body reacts to the mattress over the short term, you can always get a refund because of the trial policy.
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This mattress is comfy! It's not too firm and not too soft. I love it! I was a little nervous before I bought it because the price is so low. Once I went in the store and tested it out, I knew I was going to get my monies worth. Granted I've only had it for about a week now, even my boyfriend has confirmed it's super comfortale. Get it while it's on sale.View More Reviews
I bought the twin mattress and much to my dismay there was about a 4 inch gap between the mattress and my bed frame. After measuring the mattress I realized it was only 36 inches wide, not the standard of 39 inches (despite the website listing it as 39 inches wide). I finally got a hold of the manufacturer and they said that their twins are "intended" to be 38 inches wide but that each one can differ by up to two inches. So you're basically left with a mini-twin. I will be returning this.
It's pretty comfy for the price but honestly I could have gotten cheaper at another matress store, definitely shop around more. It's not very thick and the euro top seems like it will be flattened very easily I give it maybe a year before it starts losing its comfort completely
My first set of guests found this to be very comfortable. I slept in the guest room to try it out and found it very comfortable. I am very pleased with this purchase and will purchase future items.
Nice product at the right price. My child needed a mattress for a new college apartment. We saw many options and even ran into a manufacturers rep at the store who helped us with good advice. As usual, the experience was great
love this mattress very comfortable the never disappoint
Great price and such an amazing mattress. The level of comfort is undeniable. I'm very happy with this product and would recommend it in a heartbeat.
This mattress was purchased for a bedroom that is only used for guests and when child is home from college. The mattress is very comfortable and the price is perfect for this situation. We have had it about a week and my kid loves it, it's 12:20 pm now as I write this review and she is still sleeping.
Buying this mattress was an amazing investment. Such a comfortable bed to sleep on and the service and delivery was very prompt and professional.
Very happy with what I bought slept like a baby. The delivery guys came set it up fast. Very happy with the service.
My husband and I are sleeping so much better since purchasing this mattress. It's not too firm or too soft, so you get support without feeling like you're sleeping on a board.
We love our new Mattress! The comfort and quality is unbelievable and for what we paid for it...we just love it!!
I purchased two of these mattress for my boys, without them being there to try them, and they just love it. They said it's so comfortable that it just conforms to their bodies. Mind you my 15 year old is 262lbs and said the bed is like a giant blanket. So hats off for a great product at a reasonable price...
I recently stayed in a bed in a breakfast in Maine--and loved the mattress I slept on. (I've got neck and shoulder issues to the mattress is often crucial.) I found a similar King Koil mattress and Raymour and Flanigan. The price was right; the delivery was prompt. "For this relief much thanks." Happy with my purchse: feels good!
When choosing a bed we needed a firm mattress with back support for me but yet some cushioning for my husband and the King Koil Perfect Response Elite Lakeside Pillowtop was "the perfect" choice. Very pleased with our decision and we even received next day FREE delivery - very nice!
I love my new mattress -and the service that came with it.
The bed is great. It came when they said it would and the sales person was wonderful in working with our family.
Bought this for my guest bedroom and it was given an A plus By my first guest. She couldn't believe it was a firm mattress. Would highly recommend.
WE NEEDED A FIRM MATTRESS AND THIS IS PERFECT! NOT ONLY IS IT EXACTLY WHAT WE WANTED THE INSTALLATION WAS WONDERFUL. WE NEEDED SLATS FOR SUPPORT AND THE DELIVERING TECHS DID IT ALL WITH NO PROBLEM. SALES PERSON WAS WELL INFORMED AND ANSWERED ALL OF OUR QUESTIONS. FLO L
I have a California King Mattress and it is the best.... I was not sure of down sizing to a Queen Mattress, but I must say that it was the best choice I love the way my body rest and the best part is that my husband and I are know closer....
THE MATTRESS AN BOX SPRING I PURCHASED WAS JUST EXCELLENT. ITS MEETS ALL MY STANDARDS FOR COMFORT .THE SALES PEOPLE WERE JUST GREAT HELPING ME FIND THE RIGHT ONE . I HIGHLY RECOMMEND MY CHOICE.AND THE STORE LOCATION ON CROPSEY AVENUE
It's hard to get out of bed after sleeping on this very comfortable mattress. You look forward to relaxing at the end of the day. I like it very much. Keep in mind, coupled with the box spring, it is very high. Can't go wrong with this one, unless you like it extremely firm. It has the right kind of firm but soft too.
Very happy with our purchase! Bed is comfortable. Not too firm, not too soft. Great quality for a great price!
The mattress is very comfortable. It's the best sleep I've had in a long time. It is a 5 star hotel quality mattress. I'm in love. I must stress that the hubby that works at night and have Insomnia also agreed that his sleep has been much better. Thumb's up.
I absolutely love my new bed. Best experience it's comfortable for my back after I come home from work cause I work 19 hours of the day doing labor and I just needed a new way to sleep. This is one of the most comfortable beds I've ever slept in and I highly recommend it to everyone.
The store was great the product was well priced and it was a convenient purchase. Loved the salesmen [Associate name removed].
This mattress has just enough firmness topped with a pillow top that has just enough softness! The price is perfect and the customer service was out of this world. No one trying to force me to the most expensive products in the store.
I am very much enjoying my new mattress. I was afraid it might be too soft but I'm glad I went with the softer mattress over the more firm mattress. While this is soft, it is still very supportive. This mattress is great quality for a good price.
great mattress sleep like a baby love it so much it is great
Best decision i made for my son he loves his new bed. Raymour and flanigan alway have good quality furniture which last a long time. I know when i shop with them im getting good stuff.
I needed a mattress for my fathers spare bedroom so I had a place to sleep when I visited. I didn't want to spend a lot but I wanted something that was nice and comfortable. This mattress is it! I have slept great when visiting him now and the Sales associate Tom P. in Clifton Park listened to my needs and took care of everything! Thank you Tom!
very comfortable but still with support!! Very happy!!
This mattress was purchased for a guest room and has only been slept on once with a report that is was very comfortable. The salesman was very helpful and polite. The delivery team were very helpful and delivered quite timely
I really like this mattress. It's really comfortable and it feels like I'm sleeping on a cloud.
My old mattress was still in good looking shape, but had outlasted the years I needed an extra firm mattress. My new King Koil plush is so comfortable, I sleep right through the night. Both my husband and I are well pleased with this purchase.
Mattress is unbelievably comfortable. My wife and I love it so much.
So far so good! Great price for the quality. I'll write another review after about a month or so
I am so happy with my purchase. I haven't slept this well in a long time. I definitely Recommend this mattress. The salesman was very knowledgeable and he listened to my needs.
I am very happy with my king coil mattress purchase. In the past I have always bought Sealy's. It is very comfortable and I am happy with it. Also the service at the store and the delivery was very good. I am also very happy with the guarantee on the mattress.
Mattress after the first night of sleep had a indentation in it already. Was or is not as comfortable as I expected.
I'm a chiropractor and I have been looking for an orthopedic mattress for myself, as well as something I can recommend to my patients. I've had the TriSupport Mattress now for almost 2 weeks, and I am very happy with it so far! It successfully supports the spine's curves and is comfortable in all sleeping positions. I have noticed an improvement in my sleep quality too (fall asleep faster & wake up feeling more rested than before), which is an awesome added bonus. Stellar customer service as well. Thank you!View More Reviews
We upgraded to a king after having a queen, and couldn't be happier! This mattress provides amazing back support! I had just gotten shoulder surgery, and as a side sleeper needed something super comfortable for my back - no pain, and love may be converted to back sleeping!
I really love this mattress, it is very supportive in all the right places. The staff are very helpful.
For years I have had to put a wad of socks under the middle of my back to give me the support I needed to lay on my back. With this mattress I no longer need to do that. I also had issues laying on my left side putting pressure on my hip and making it feel out of joint the next day. With this mattress I have a lot less of that issue as well. I am very pleased with the purchase.
I noticed less tossing & turning the first night I slept on my TriSupport mattress. After a few more nights, I realized I wasn't snoring as much if at all! I like it's firmness and that I don't sink into it but rather sleep on top of it. It's comfortable sleeping on my stomach as well, however, I find I do not wake up on my stomach anymore because I'm quite comfortable sleeping on my back or side. I'm very happy with my new mattress!
The trisupport mattress is wonderful. The varied supports in the mattress lend itself for a painfree, relaxed sleep.
We were a bit apprehensive at first ordered 2 mattresses and couldn't be happier being a side sleeper my shoulders are in heaven sleeping better than ever Thanks
We have had our Level Sleep mattress now for one week and so far so good. It did take some nights (3) to get used to it and find the "sweet spot" for greatest comfort, but since then, we have slept great and have had no back trouble whatsoever!
we finally spent our first night in our new home on our sleep level bed. It was so comfortable. Jim said he felt very comfortable in all hia sleeping positions. I slept very soundly as well. I was going to send a note to thank the team for there great service.
This mattress and pillows are worth every penny. Have been have great night sleep ever since. Should have bought this month's ago. Thank you for everything.
I found Level Sleep through a friend and then was welcomed into their cozy Sonoma home store to one on for style. While the mattress in the store was amazing and is what prompted my first purchase for my new place; it was not until 30 days of incredible sleep that I appreciated the beauty of the TriSupport Mattress and Level Sleep's innovative technology. The stress of moving paired with other life altering events left me quite sleepless, but there was something in the comfort of my Level Sleep mattress that helped me sleep like a baby. More than 120 days in, my mattress continues to provide healing and restful sleep as promised. I am a believer! Thank you.
After swapping out my expensive mattress for the much cheaper Level Sleep mattress, I wasn't too impressed, but after a few nights I started waking up without my normal back pain (from my L5/S1 fusion area) that I had become used too. Maybe I didn't align myself vertically in the right position, but I really became a believer and a huge fan on the Level Sleep technology as it is the best mattress I have ever found for alleviating back pain. Way to go team. Great Mattress and a Great price too!
I've been struggling with back pain for years. My chiropractor told me about this bed and What a difference! The bed is firm enough to sit upright in as well as support you while you sleep lying down. It does not move around or disturb your partner like many other beds. I used to wake up every morning so stiff and sore in my previous bed. The price is also extremely reasonable! The bed came in the mail and was easy to set up
I'm so grateful my chiropractor suggested this mattress. For anyone who suffers with fibromyalgia, it is an answer to prayer. I also have a herniated disk & OA. This mattress provides the different levels of firmness/softness where they are needed most & I couldn't be happier.
I've been telling my friends about your intelligently made mattresses that we found to be very comfortable with support in the right areas. We've tried other mattresses that disappointed us rather quickly. We first put your mattress in the guest room and guests loved it, but then we decided to put it in our room and have been much happier than with our older, expensive yet sagging mattress. We recently stayed at Whitehall Hotel in Chicago that advertises as having the second most comfortable beds in a hotel....don't know what brand they use, but your LevelSleep is right up there if not better....
I am very happy with the level sleep mattress. I have struggled to find a mattress with the right support for my lower back that is also comfortable and good for the rest of my body. I appreciate this mattress has different firmness for different parts of the body. It seems to be working for me as I have been sleeping on level sleep mattress for three weeks and I have experienced good sleep and ZERO back pain. This is a welcome change from previous mattresses. On this particular mattress the sides are not as structured as ones I previously owned. I cannot sit on the edge without naturally sliding off the edge of mattress. Since I chose this mattress for sleeping this issue is just a minor inconvenience. I'm a mostly side sleeper enjoying pain free mornings thanks to this level sleep mattress.
I am so grateful for this wonderful product which provides pain relief for my autoimmune and osteoarthritis joint problems. I am now having a restful night's sleep and can more comfortably get out of bed in the morning. My quality of life has been greatly improved. Thank you to Zach for arranging to send it and the wonderful restore pillow to me in Melbourne Australia. My best wishes to all in the happiness team at Level Sleep. Christina Castles.
Great customer service. Delivery and packaging was easy. Mattress had no off gas smell at all. The cover is so high quality and breathable. Best nights sleep in over a year. Starting to see improvements in my neck and back pain after 10 days on it.
Before we purchased our mattress we had a couple questions about the product so we contacted the company to get more information. They responded right away and answered all the questions that we had. The were super friendly and informative. We purchased the king size mattress and have absolutely fell in love with it. My husband has back issues and this mattress has helped him tremendously! I recommend this bed to anyone looking to get an amazing nights sleep! It is totally worth the investment!
This bed is phenomenal. A must for spine care experts and their patients.
Recently bought a Level Sleep mattress when it was time to upgrade and we love it. My husband, who is an airline pilot, is sleeping better than ever. Just wish we'd bought them for every room!
Love the new mattress. It does what you said it would do - support the spine in the midsection and softer places for shoulders and hips.
I have a chronic lower back pain so I tried several other options before Level Sleep. And I can surely say that Level Sleep totally works for me. This is the first mattress which really relieves the lower back pain. I feel better even throughout the day. Thank you! I didn√¢‚Ç¨‚Ñ¢t think this was even possible.
I now have a total of three Tri Support Mattresses in my home and we love them! We were introduced to this product through a family member and at first we were skeptical and then when we received our first one...we were sold. We have had our mattresses for a few months now and there is no going back for us. Thank you Levelsleep!
We love the bed. My husband said this is the most comfortable bed he has ever slept on.
Both my wife and I were suffering from various pains upon waking every night. Since getting Level Sleep's premium mattress, we both have been waking up pain free. We love it! Thank you, Level Sleep!
I'm 92 and with the help of a 65 year old we had no trouble getting "THE BOX" up a couple stairs and on the bed. That was a couple months ago and so far we're very happy with the purchase.
And then my body adjusted to having lumbar support and my back thanks me every morning!
After the first night of sleep on my TirSupport mattress my back pain decrease by 80% when I got up the next morning. I am hoping that once my body adjusts to the mattress that my back pain will be eliminated.
I've been seeing my chiropractor for about a month with a back problem that was causing pain in my leg. After mentioning that I was having trouble sleeping because I couldn't find a comfortable position, he suggested looking at the Level Sleep mattress. After looking it over, I called with a few questions and ended up ordering a new TriSupport mattress. When it arrived, it was actually kind fun unpacking and setting it up. We've been sleeping on it for almost two weeks now and have definitely been sleeping better with less tossing and turning. My wife even said she thinks we're both snoring less now.
no back issues since Ive been sleeping on the bed- or shoulder issues.....used to have shoulder and neck stiffness in the morning and that is a non issue anymore. I think it would be best to have the special pillow also!
I had a bad shot mattress. I replaced with the tri support and have slept much better from night one. The mid support area is a little to close to the head for my baby. I have a twin. My abdominal part of my body is a litttle longer than normal and my legs area little short. I would have bought the longer and wider one but don,t have thes space.
I no longer feel painful back in the morning. Sleeping on my back seems to be much easier too. I really like it :-)
Very comfortable and good support but my arm always falls asleep if I sleep on my side. Is a less firm version available ?
I have slept better the past week than I have in the last year. The pillow is as much help as the mattress. I plan on getting the pillows for my children.
We started sleeping on our luxe mattress 2 weeks ago and couldn't be happier! We previously had a different brand foam style mattress that cost quite a bit more and we are much happier with the Level Sleep product! Thank you JJ and Zach for the awesome service!
I have questions and I want to speak with Zach. 213.595.5478.
So far so good I think it's a keeper
...a great night's sleep! This topper is amazing. From the very first night we slept on it, we were amazed how comfortable we were compared to previous nights. It arrived promptly and love that it was guaranteed to make us happy. It sure does. Highly recommend!
The TrSupport Mattress is great! We wake up without back pain. It's just the right firmness and it's really fun to sleep on; raise your head, raise your feet and use the wave to relax awhile before sleeping. Thanks to the technology team for the development of Level Sleep mattress bed. This mattress is made with high grade materials and will last a long time. We may go back and buy the mattress TriSupport Topper for days we want a change of pace to pamper ourselves. We recommend this bed to anyone who wants to Sleep Happy. Thank you.