Beautyrest Centennial · Harmonia Series ★ 4.67 (42 reviews)
Perfectly balanced comfort.
16.5″ of super pillow top luxury that cushions and supports in equal measure, with cooling built into every layer.
Right in the Middle of the Comfort Scale.
Every detail of the Centennial Harmonia, from its super pillow top to its coil-on-coil core.
plush
firm
What’s Inside.
Scroll to explore every layer of the Centennial Harmonia.

- 1Sleep Climate™ Cover
A cool-to-the-touch cover enhanced with cooling yarn, designed to promote a cooler, luxurious rest.
- 2Self-Response™ Latex×2
Designed to maximize airflow and contour to your body for responsive pressure relief.
- 3Micro Diamond™ Memory Foam×2
Infused with diamond particles to help move heat away from the body for a cool sleep.
- 4Beautyrest® Gel Comfort Foam
A gel comfort foam layer that adds cushioning beneath the surface.
- 5Micro Coils×2
Two layers of micro coils, 2,000 in total, that enhance conformability and individualized support.
- 6SurfaceTouch™ Gel Memory Foam
Gel memory foam that contours to your body.
- 7Beautyrest® Gel Support Foam
A supportive gel foam layer that bridges the comfort layers and the coil unit.
- 8Beautyrest® Triple-Stranded Pocketed Coils
Beautyrest’s most advanced individualized support and motion separation, so you can rest undisturbed.
- 9Beautyrest® Support Foam
A foundational support foam layer beneath the coil unit.
- 10Quilted Border & Base
A tailored quilted border and sturdy base that frame the support system and add edge stability.
Compatible with Adjustable Bases.
Customize your sleep position without losing an ounce of comfort.
Hotel-Style Luxury at Home.
Deep black quilting, a gold Centennial badge and a generous 16.5″ profile give the Harmonia real presence in the bedroom.



- 16.5″Super pillow top
- 2,850Coils in total (Queen)
- 10-yearLimited warranty
- 100 nightsSleep trial
Frequently Asked Questions
Its medium feel makes the Harmonia one of our most versatile mattresses. Side sleepers get enough cushioning at the shoulders and hips, back and combination sleepers get solid support, and couples with different preferences usually both find it comfortable. Strict stomach sleepers may prefer the firmer Centennial Ares.
Yes. It combines a cool-to-the-touch Sleep Climate™ cover, breathable Self-Response™ Latex and diamond-infused Micro Diamond™ Memory Foam that draws heat away from your body, while the coil-on-coil core keeps air moving.
Sleep on it for up to 100 nights. If it isn’t right for you, you can exchange it once for a different mattress, and you’re free to choose another model or brand. If your new mattress costs more, you simply pay the difference; if it costs less, we refund the difference. Exchanges and returns are available across the GTA and up to 250 km from our Toronto showroom.
The Harmonia is a generous 16.5″ tall. Standard sheets often won’t fit, so we recommend deep-pocket fitted sheets designed for mattresses up to 18″.
This is a one-sided mattress, so it should not be flipped. We do recommend rotating it 180° every 3 to 6 months to help it wear evenly.
The Beautyrest limited warranty covers manufacturing defects in materials and workmanship, such as broken coils or body impressions deeper than the manufacturer’s limit. If an issue comes up, contact us first and we’ll pass your claim to Beautyrest and make sure it’s handled smoothly.
Still have a question? Call us at (416) 781-7441.
42 reviews for Beautyrest Centennial Harmonia Super Pillow Top Medium Mattress 16.5″
Pairs Well with the Centennial Harmonia
Similar Comfort
World Class Flora Pillow Top Medium
Hybrid · Pillow Top · 15.5″ high
- Zoned support for your back
- Sleeps cool
- Low motion transfer for couples
iComfort Opera Medium
Memory Foam · 13″ high
- Zoned support for your back
- Sleeps cool
- Low motion transfer for couples
Complete Your Bed






Tonali –
Great mattress, I had the regular foam version before this one and decided to upgrade to the hybrid version and I am very happy with it.
S Cohen –
Absolutely delighted with this mattress, would highly recommend it.
Joshua –
This is the best mattress I have had without a doubt. I decided to bite the bullet and go with a more expensive mattress since I had many cheaper mattresses which just wouldn’t last. Finally I have a mattress which I am sure is going to last me a long time.
Ilko –
I had slept on this mattress at an airbnb and I really liked it so decided to get one for myself and I am really happy with it
Fredrik –
Very happy with our new mattress
Nora –
The mattress is simply perfect for me and my hubby.
Jahmiel –
This mattress has been a game changer. I no longer wake up with a sore back and my overall sleep is great. I love it. The service was excellent as well. I highly recommend Sleep Masters Canada.
Jason –
I bought 2 mattresses’ from Sleep Masters Canada now and this mattress has been my second purchase, I absolutely love it. I have referred all my friends here beacsue that is the right thing to do. Thank you guys, I’m a happy customer.
Michael R –
I’ve always had a memory foam mattress but usually with no coils but I was recommended to try a hybrid, which I had no clue about but I decided to give it a go and it has been great so far. Very nice to have got the 10% discount too on such an expensive mattress.
Amber O –
I was recommended this mattress by a friend and it has been amazing for my lower back pains
Anson –
I received the mattress and I was excited to try it out after hearing good things about it but it just was not for me. I must say I liked how cool the top was but the comfort level and that memory foam feel I did not like at all.
Alain –
Absolutely fantastic!
Brian –
We have been waking up well rested, be it after 8 hours or just 6 hours, no problem. Great investment so far.
Finn –
I’m very happy with the hybrid mattress after 2 weeks. There is enough support back and stomach positions, but the top layer is also soft enough to provide support for side sleeping
Jules G –
Just wasn’t my cup of tea i’m afraid.
Diogo –
I was recommended this mattress by Ali after I used the mattress selector form and I can confirm that he has hit the nail on the head. I was hoping I wouldn’t have to spend so much but was willing to do so as long as the mattress fit the bill and it definitely has.
Noah –
This mattress just feels like the perfect choice for me and my wife as we are both kind of average sized and we both are back & side sleepers. Neither of us feel any pressure points not matter which position we are in and we also don’t feel each others movement. Lastly, we love that the mattress always has this cool feeling to it which just makes the bed a little more cozy.
Luke –
A really great mattress with a perfectly balanced comfort
Harry C –
From the order to the delivery every step was really smooth, just like the mattress 🙂
Maria S –
It’s hard to describe exactly the issue I am having with this mattress but I guess the most important thing is that it definitely is not a medium because the mattress feels really firm. Also, it is so heavy that it’s a trouble event trying to rotate it.
Burns –
Took a little while to get here but I am so pleased with the comfort of the mattress, it is perfect for me.
Hannah A –
Thank you to you guys if it wasn’t for your recommendation I would never have known to look for this mattress I cannot tell you how much it has changed my sleep for the better.
Bora –
This is an elite mattress in every way.
Rachelle –
This is our second time purchasing this mattress altough the last one we purchased was 3 years ago in a queen size and it has a different name and design now. The specs seem exactly the same and the comfort is also exactly the same and we love it.
Armine –
Epic mattress and I will recommend it to my parents who are also looking for a new one, thank you!
Rony –
I was told that this is a type of mattress that I’m either going to love, or hate. I guess I’m glad to be on the love side.
Hollie –
Wasn’t a cheap buy lol, so I expected it to be really good for this kind of price but to be fair, it really is great.
Yunus –
I expect better from a mattress of this price
Tony –
Terrific mattress that I highly recommend. Yes it’s a little pricey but you get what you pay for and you’re not going to look back trust me
Jeremie –
It seems Beautyrest keep re-incarnating the same mattress with a different look and name but it’s always the same mattress. I am not complaining because it is perfect, even better than I thought it would be so I recommend it and I will be back for another one very soon but this time for the cottage. I hope you guys deliver to Muskoka area.
Amir –
All things considered i am happy with my purchase and I do find the mattress very comfortable. I also want to mention how kind everyone that I dealt with was both in the store and through email connection and finally the delivery staff. Like I said the mattress does feel very comfortable but maybe it is a bit softer than medium.
Bob –
What incredible harmony between soft and firm, this is a mattress that I can sleep in any position with and I don’t feel any stifness
Devin –
My God this mattress is literally the most comfortable thing that my body has ever been in contact with
Dorgeles –
Yeah I am sorry but you’re just not going to find a better mattress than this
Antoine –
Omg this is so big and so heavy but let me tell you it is also incredibly comfortable. It seems I will need to also order a low profile box because my existing box is 7″ and it is difficult to get in to bed I almost have to climb in. Just something to keep in mind if you are considering this mattress.
Ege –
What I really love about this mattress is that it feels both firm and soft at the same time which is good because I like that balance and also I sleep in different positions so it feels supportive everywhere.
Mircea –
Could not be any happier with my new mattress and the great help from Ali who carefully handled our order and delivery
Ruslan –
I have never had such a comfortable bed in my life
Arda –
I genuinely look forward to going to bed every night because of my new mattress
Dushan Mendes –
Terrific mattress it does not dissapoint you
Eduardo –
Our experience with sleep masters and also the mattress has been nothing short of excellent and we highly recommend to go and see them even if this isn’t your type of mattress they will find something more suitable for you
Harper McGee –
Quite simply the perfect mattress