Serta iComfort Nappa Firm Mattress
Serta iComfort Nappa Firm Mattress Silo
Serta iComfort Nappa Firm Mattress Room Shot

Serta iComfort Nappa Firm 11.5″ Mattress

(45 customer reviews)

Price range: $1,208.00 through $1,788.00

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Ships within 3–7 business days. You’ll be contacted to schedule a delivery day that works best for you.

Ultimate Comfort Gel Firmometer

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Description

Serta iComfort Nappa Firm 11.5″ Mattress

Upgrade your sleep experience with the Serta iComfort Nappa Firm 11.5” Mattress, designed for firm support, cooling comfort, and long lasting durability. Made in Canada, this premium mattress combines advanced memory foams and a responsive support system to deliver exceptional pressure relief and spinal alignment.

Key Features:

✔ Smooth Top Firm Feel

Ideal for those who prefer a firm sleeping surface for proper back support.


✔ CoolFeel™ Fabric

A breathable, cool-to-the-touch cover enhances airflow and temperature regulation.


✔ Perfect Conform™ Graphite Memory Foam

Infused with graphite to help draw heat away from the body while contouring to your shape.


✔ iComfort® Gel Memory Foam

Provides superior pressure relief and motion isolation for undisturbed sleep.


✔ 5 Zone Response Foam

Enhances targeted support in key areas like the shoulders, back, and hips.


✔ Serta® Foam Core

A durable support system that maintains stability and prevents sagging over time.


✔ 11.5-Inch Mattress Height

The perfect profile for a comfortable and supportive sleep surface.


✔ Adjustable Base Compatible

Designed to work seamlessly with lifestyle adjustable bed bases.


✔ 10-Year Warranty

Backed by Serta’s quality guarantee for years of restful sleep.

The Serta iComfort Nappa Firm Mattress is the perfect choice for those seeking a firm yet comfortable sleep surface with advanced cooling and pressure-relieving technology. Sleep better with a mattress that’s designed for durability, breathability, and all-night support.

  1. Catherine –

    This is a very comfortable high quality mattress. So far so good for me!

  2. Krista –

    This mattress is nice and firm but not too firm. I find it very comfortable and I love how it makes no movement when my partner is moving around.

  3. Linda M –

    Sleeping like a baby. This mattress has a firmness to it but a comfortable top at the same time. My favorite thing about it is that it is always cool.

  4. Kathleen F –

    We purchased the Queen size and honestly I’ve never looked forward to going to sleep as much as I do now. It’s always cool, firm but not too firm and no motion transfer at all

  5. Shelby –

    I replaced my spring mattress with this firm iComfort and it is one of the best choices i have made in a long time. Completely changed my sleep for the better.

  6. Victoria –

    This is my first purchase from this company and I am very happy with the mattress and also the service. I have recommended them to my family and friends.

  7. Paul S –

    Tried it in the store and loved it right away. Ordered it and the mattress came on the day they said it would. The delivery guys even took it up and placed it on my bed frame for me. Really happy with the quality of the mattress and also the service.

  8. Dragana –

    Really good mattress. We had slept on it at a Hotel for a couple of nights and we fell in love with it and decided to buy one for ourselves.

  9. Natasha –

    We’ve had this mattress for a while now and its soooo good!

  10. Angela D –

    This is a definite 5 star. The mattress just has a perfect balance of firmness and comfort. Like you feel the firmness come from beneath but the top part of the mattress is still very comfortable and soothing.

  11. Emre –

    I am super happy with this mattress, it works really well with my adjustable base and the comfort is just what I was looking for. I wanted a mattress to be firm but not crazy firm. Also, the fact that the surface is always nice and cool is such a bonus!

  12. Natasha –

    This is the best mattress I have had without a doubt. I like firmer mattresses but not like a rock it still needs some give at the top and this mattress does that perfectly.

  13. Nancy Doherty –

    Thankful to Sleep Masters for making this really easy for me. I did not have a clue of what type of mattress to get but I was informed of all the types in the store and then recommended this one for all my needs. Delivery was also really easy!

  14. Tomson –

    Our experience with Sleep Masters Canada was outstanding and it is honestly good to see that there are still honest businesses out there. From the knowledagable sales staff to the excellent delivery team, everything was incredible. I will make sure to recommend all of my friends to you guys. Thank you for everything.

  15. Chantal –

    No more sore back for me or sore hip for my husband. It’s the perfect mix of support and firmness for a great nights sleep.
    We definitely recommend.

  16. Vesime –

    Not good mattress, I didn’t like

  17. Mahdi –

    We replaced our mattress with this iComfort firm and we are very happy with it.

  18. Don R –

    Very comfortable mattress I was just expecting it to be a tiny bit firmer.

  19. Haysam –

    I’ve had terrible lower back pain for a very long time which is probably also due to my work as I do construction. I’ve purchased this mattress and I have now been sleeping on it for just under a month. For reference, I am 205 lbs and I like to sleep on my back and my sides and this mattress has definitely helped with my pains. They are not completely gone, but I would take this over what I had before any day of the week.

  20. Don –

    Probably the thing I like most about this mattress is the coolness but of course it is also very comfortable

  21. Dorothy –

    Not only is this mattress awesome, but you guys have the best service I have seen and your prices are so good!

  22. Zouie –

    So I saw something similar to this at sleep country but it had a different name so i was a little confused because they were also very differently priced. Then when I checked the specs it seemed to be almost exactly the same mattress so I went ahead with this one and it has been so good for me.

  23. Nikki –

    I’m still not quite sure about this mattress. I like the fact that it’s cool and it does not make me hot and it feels good on my back but on my sides I still feel some pressure on my shoulder.

  24. Samardzic –

    At first I found the mattress to be a little too firm but this quickly went away after the first week and now the firmness is just the right amount

  25. Emi –

    Even though I find this mattress a little firmer than what I actually prefer, I have to say the mattress feels really good for my body. It is going to take time for me to get used to this new comfort level but in the end it’s worth it if it makes me feel better.

  26. Rhoba –

    I’m not sure if it is even as firm as the scale shows, but you know what I think it’s better this way. You still feel the firmness to it but the top of the mattress is actually very comfortable.

  27. B. Ckachan –

    The comfort and the quality of the mattress so far feels really good and also your delivery guys are absolutely incredible, they deserve a tip and we did tip them! My only concern is that for the first couple days the mattress had a lot of offgassing. It’s pretty much gone now but the first two nights was frustrating as we kept the windows slightly open, and it;s not exactly warm outside right now lol

  28. Julie –

    It took us a while to find a mattress that really worked for both myself and my husband but after our third try, we have got there in the end and now very pleased with this mattress

  29. Bobby –

    Thank you for all your help but this mattress was not the one for us

  30. Frenkie –

    I don’t even know how this is possible but the same mattress here in calgary was like almost double the price. I had to check whether they delivered all the way to Calgary and even though the shipping fee was $100, it still comes out to way less than what I would have paid here. The delivery was on time, but the delivery guys didn’t do white glove delovery, so they just left it at my door. Luckily this mattress is not too heavy.

  31. Nour M –

    The firmness of this mattress is perfect, so much so that even on my sides it feels great on my shoulders, which can sometimes be an issue if the mattress is too firm.

  32. Sebo –

    Top guys and top quality products, all the best to you!

  33. Djeorgan –

    This is our third icomfort mattress and everytime they have not dissapointed. Very well made mattresses which dont get hot and also dont weigh 1000 lbs.

  34. Zach –

    Delivery took long but the mattress is perfect

  35. Sher –

    This mattress is too firm it’s like a rock and I did not expect or want that

  36. Angel –

    So nice to be able to talk to someone on the phone who actually knows what they are talking about and wants to help their customer find something that is suitable for the specific customer. I spoke to Ali and he recommended this mattress for me after I told him about all my specific needs. What a great customer service. The mattress is also just perfect with firm and comfortable feeling at the same time.

  37. Emil –

    Mattress shopping can be so confusing and it was also for me too at the beginning but thankfully I ran into you guys because your online chat tool was really helpful and the recommendation made to me was perfect

  38. Sertap –

    I will not buy an icomfort mattress again it’s honestly so overrated and it comes with a strong foam smell that’s really offputting for me I am onl giving it 2 stars because sleep masters was kind enough to have my mattress returned and refunded.

  39. Kayahan –

    Needed something firm and cooling at the same time and this mattress does both perfectly so it works great for me

  40. Karaca –

    Don’t miss out on this mattress while it’s on sale because it is just perfect

  41. Thomas –

    Serta iComfort mattresses have always been my go to and I know that they have changed the designs a little here and there but honestly the comfort has always been amazing;

  42. Ilia –

    Two things that I needed were cooling and zero motion transfer and this mattress does both perfectly.

  43. Steven –

    I am convinced I made a very good choice and I have to say maybe I got lucky because I didn’t do hours and hours of research I just picked a good brand with firm memory foam and it worked

  44. Marty Tong –

    Not only is it super comfortable but it is also doing great on my adjustable bed and I think that is because the mattress is not super thick so it flexes very well

  45. Jay –

    We already had one of these in a twin xl so we got another one to complete our adjustable base set and we love it

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