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5.0 | 30 Reviews

iComfort - CF4000 Hybrid - Plush - Cal King

iComfort Hybrid

Features

  • 1025 iComfort® Hybrid Support™ System with BestEdge® Foam Encasement - In this advanced innerspring system, individually wrapped coils work independently to conform to every curve of your body and provide durable support.
  • Air Support™ Foam - This exclusive air-cushion technology moves with your body and smartly contours around it to help alleviate aches and pains caused by pressure points.
  • Carbon Fiber Memory Foam - Every iComfort mattress is made with our exclusive Carbon Fiber Memory Foam. This system channels heat away from your body and provides exceptional strength for back and neck support.
  • Max Cold™ Cover - Made from super cool high-performance fibers for an instant cool-to-the-touch sensation.

Quick Specs

  • Brand: SERTA
  • Line: iComfort Hybrid
  • Type: Tight Top
  • Width: 72"
  • Height: 84"

See More

 
The CF4000 Hybrid Plush mattress features iComfort's most innovative cooling and support technologies. Carbon Fiber Memory Foam paired with the UltraCold System™ help channel heat away from your body. Our exclusive Air Support™ Foam contours to your body and helps relieve aches and pains caused by pressure points, while the 1025 iComfort® Hybrid Support™ System with BestEdge® Foam Encasement provides durable support from edge to edge.

Features

  • 1025 iComfort® Hybrid Support™ System with BestEdge® Foam Encasement - In this advanced innerspring system, individually wrapped coils work independently to conform to every curve of your body and provide durable support.
  • Air Support™ Foam - This exclusive air-cushion technology moves with your body and smartly contours around it to help alleviate aches and pains caused by pressure points.
  • Carbon Fiber Memory Foam - Every iComfort mattress is made with our exclusive Carbon Fiber Memory Foam. This system channels heat away from your body and provides exceptional strength for back and neck support.
  • Max Cold™ Cover - Made from super cool high-performance fibers for an instant cool-to-the-touch sensation.
  • UltraCold System™ - This layer of extra-cool Carbon Fiber Memory Foam is engineered to work hard at absorbing excess heat from your body, then channel it away, all while you sleep comfortably.

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Mattresses can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new bedding should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

5.0 out of 5

100% of reviewers recommend this product.

5 Stars

Beyond Comfortable!

martha061 3/26/2020

Since my innerspring mattress was almost 20 years old, I was in search of a new one. Both my hubby and I have back problems and decided to look into the foam mattresses. I am so impressed with the Serta iComfort CF4000 with the gel memory foam. Even though it's a firm mattress, it is so comfortable with the top layer of memory foam. It seems to mold right around my body and we both get a good night's sleep and wake up feeling refreshed and no morning back pain. This mattress is over 13" deep and with the memory foam when I move while in bed it doesn't bother hubby and the foam goes right back to the original shape. If you tend to sweat at night, this mattress removes the excess heat from your body with the cooling technology and carbon fibers to help give you a much more comfortable and restful sleep. I am so impressed with the quality, the construction and overall comfort of this Serta iComfort mattress and highly recommend to anyone looking for a new mattress.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

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5 Stars

This mattress is great!

jenn31021 3/16/2020

We got this mattress for our son. He is very hot natured and this mattress keeps him very cool! I tried it out and immediately felt the cool radiating from it. This mattress is made with great quality!! It is plush while still being pretty firm. Everyone in the family that has tried it, has said they slept much better, than on any of our previous mattresses.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

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5 Stars

Amazing!

Cwisialo 3/15/2020

We are so so happy with this mattress! I had back surgery 8 years ago and this is the first time that my back doesn't hurt every morning! So so thankful!
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Awesome Night Sleep

ToxicTwinkie 3/9/2020

Mattress came and I couldn't put it on box spring just yet so as I'm looking at it and feeling it I thought wow this bed is really hard and thought I was going to be sorry but boy was I wrong. Finally was able to get this heavy mattress on my box spring, put new sheets on and couldn't wait for bed that night. Night time came and oh my I slept all night long (which never happened with my old mattress) woke up with no back pain at all (also which I have dealt with for a long time). I couldn't believe that this mattress that I thought was I was going to hate that I love, love, love. The stitching is nice and tight. It has a cooling feature that really does work. When you lay on the mattress it feels like the mattress is gently hugging your whole body. You can move around, toss and turn and the person next to you won't even feel it. This bed is a dream come true. No more back pain, being able to sleep all night without tossing and turning is total awesome. This bed is made so well and nice and thick.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Comfortable and the cooling tech is amazing

dreamz 3/9/2020

This is easily one of the most comfortable mattresses that we have ever laid on. The plush top makes it contour to your body, and the cooling technology built in to the top layer is great for warmer climate areas. The mattress is deep, though, so you'll need to find some deep pocket sheets to fit over it properly. We've had issues in the past where plush mattresses were just super soft and they often caused me and my partner to just roll into the middle all night, but with this one you can't even feel your partner moving in the bed. If you're looking for a new mattress, this is the one to consider.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 
5 Stars

A great night sleep, every night

Lex24nic 3/5/2020

Wow. I can't get enough of this mattress! It's so comfortable to sleep on. I wake up feeling refreshed with ZERO aches. It's not too firm, and not too soft. I would definitely recommend if you're looking to upgrade your mattress.!
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Like sleeping on a cloud!

itygfma 3/3/2020

The Serta iComfort CF4000 Hybrid Plush is a mattress that dreams are made of. It is so so soft! The one draw back is that might be a little too soft for me. I have a large frame and weigh more than 200lbs, I sink right in. It is very comfortable but when I am ready to get up, I feel stuck. My body doesn't want to get up. My next purchase will be the firm version. But for now, sleeping on a big fluffy cloud is just perfect. My entire body is supported no matter which way I sleep. I am a side sleeper usually. One morning I woke and had been sleeping on my back all night! Wow! My body was well rested and ready for the day. Definitely recommended! No box spring needed but will need at least a platform bed frame. Regular queen size sheets won't work as the mattress is more than 13 inches thick. Most sheets are 12 inches so they will pop off quick without sheet hooks. I found that jersey sheets are a little stretchy and work perfect. I love my Serta!
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Great night sleep!

Jchutchins79 3/1/2020

This mattress is so comfort. I was able to get the best night sleep! I love how it keeps you cool no matter how hot it gets. The mattress is so cool to the touch. The mattress is plush and you just melt right down into it. It has great support and I haven't woke up with any aches or pains. It seems to be made with the highest quality.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

very comfortable

dyches02 2/29/2020

mattress is very comfortable, it curves to your body just perfect, best sleep i have had in a long time
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Icomfort cf4000 plush

Ashleys1020 2/26/2020

I loooove this mattress!! This is the most soft and comfortable mattress Ive ever had!! I literally have gotten the best sleep ever since Ive got this mattress, its soft and I feel so much vooler at night also!!!
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Extremely Comfortable

Kelly0505 2/26/2020

This mattress is absolutely wonderful. I love how thick and comfortable it is. I really like that it is a plush mattress that's not overly soft. It is not too soft and it is not too firm but it is just right. This mattress is very supportive and holds my position very well. I tend to sleep many different ways and found that this mattress is still very comfortable in any sleep position. I have noticed that I'm sleeping longer and not tossing and turning throughout night. This mattress has surpassed my expectations and I'm so happy I have it. I highly recommend this product.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Best mattress ever

Shrukh 2/26/2020

iComfort CF4000 Hybrid Plush is very comfortable to sleep on. It is soft and adapt to the season. We used it in winter and it was warm and cozy. I would definitely recommend it to my friends and family members
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

I love this mattress. It's so comfortable and stays cool! I would highly recommend.

joedirt 2/25/2020

This mattress is is awesome. I was skeptical about the cooling aspect of the mattress, but I can say it stays way more cooler than a traditional mattress. I would highly recommend this to anyone who is looking for a well built mattress.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

This Bed is so comfortable

Samantha124324 2/24/2020

The first night that I slept on this mattress, the next day I woke up refreshed and ready to take on the day. This mattress is super soft not to the point where you just sink in, but just perfectly soft. The quality of this mattress can't be beat, the stitching and fabric used that went into manufacturing this product is what makes this mattress stand out. My husband always gets hot at night sleeping, and when we switched to this mattress, he no longer gets sweaty because of the UltraCold System that wicks heat away from the body. When laying down on this mattress, it really does contour to the body which aids in relieving pressure points. [This review was collected as part of a promotion.]
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

So comfortable!!

hope1999 2/22/2020

I put off getting a new mattress for so long. I am so happy with this icomfort mattress. I cant believe how well I sleep now. Before, I was tossing and turning all night, I would wake up sweating and uncomfortable before. This mattress is so comfortable and it contours to my body. It also has built in cooling technology, so I no longer sweat at night. I feel cool and comfortable. I was also waking up with a stiff neck before I got this mattress. I dont have a stiff neck anymore. It's amazing to see how a great mattress can help you get a good night's sleep and be well rested the next day. I really cant say enough good things about this mattress. It isnt too soft or too hard, It really just contours to my body and feels so good to sleep on. I cant wait to just get into my bed at night now knowing Iam going to sleep so well. I would recommend this mattress to anyone who is looking for a well made, great quality mattress.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

This mattress is life changing!

hrbnc26 2/21/2020

I have had pretty severe back pain for the past few years, which I'm convinced has been exacerbated, or completely caused, by my previous mattress. The first time I laid on this mattress, I literally felt the weight, stress, and tension on my vertebrae lift, and I was almost in tears of joy. I was slightly concerned that the plush mattress would offer little support, but I was wrong, it's very supportive, and yet still forms to my body. My husband has also been sleeping much better since we switched to this mattress. He used to toss and turn throughout the entire night, but that has drastically reduced, which has helped us both sleep better. I can tell this this is a super high quality mattress that I'll be enjoying for years and years to come!
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Your body will thank you

reviewgoddess 2/21/2020

One thing you should have during your lifetime is an excellent mattress. During our lifetime, sleep takes up one third of your life, without an exceptionally well made mattress how can you achieve your best sleep potential? The CF4000 Hybrid Plush includes a cooling technology to harness the bodies natural heat index, it is also engineered to contour the bodies natural curves to help relieve any tension in the body. The first night of sleep was the best sleep I have ever had in my 26 years of existence, my husband would not stop raving about the quality and plushness of the mattress. We woke up energized and ready to tackle the day. If you want a mattress to change your life and sleep this is the way to go.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
4 Stars

Great bed

airsoftman 2/21/2020

The way a good memory foam mattress works is it relieves pressure, supports your body, and keeps you from being disturbed at night. I have a good night sleep, but it is a little hard to roll over or get out of. I am use to a firmer mattress so it will just take some getting use to. I do sleep better and have less aches and pains in the morning.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Extremely Comfortable!!!

April38 2/21/2020

I absolutely love this mattress! I have owned it for a week now and have had a great full nights sleep every night. I have woke up with less back, hip and knee pain every morning so far. It supports my whole body evenly while still giving that soft plush feel for comfort. It is a very thick mattress that requires a very deep pocket fitted sheet. It has a cooling sensation to the touch. It is made of great quality material. I definitely highly recommend this mattress!!!
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Literal clouds!

desireeg87 2/21/2020

This mattress is what dreams are made of! My mattress prior to getting this one was 8 years old and I was having horrible back pain. The first night on the icomfort cf4000 plush, I slept like a baby. I woke up free of pain which was a welcomed blessing. I am amazed how comfortable this bed is. I haven't noticed the cooler feeling but I have a thick mattress protector so I think that may be why. I am so happy with this bed and look forward to more pain free nights.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

An amazing cool and comfy night's sleep

Tracy42 2/20/2020

I have had a terrible history with mattresses. I am a back & hot sleeper. Prior to this mattress, I had not found one to accommodate me. They were either too firm, too soft or after a few months get "broken" in to the comfort level I didn't originally choose. This mattress is the real deal! My husband & I have slept in separate beds for the last 2 years. He needs firm and I need a soft mattress. He opted to try sleeping with me in the new Serta IComfort mattress. We both woke up with no aches, pains or complaints and know we are back where we belong. It is my understanding that some people claim this mattress is best for side and stomach sleepers. For me, as a back sleeper, I disagree. While this mattress is plush, it's not really what I, personally, consider plush. It's not like you sink in it, but somehow provides the perfect comfort level. I feel it provides excellent strength and support for my neck and back. Obviously, mattress reviews are totally subjective, but to take two people (my husband and I) from opposite ends of the mattress firmness rating spectrum and then both sleep comfortably with no issues, shows it can work for most people. In regards to the cooling feature, it is quite simply what sealed the deal for me. I no longer wake up overheated and wake up completely refreshed and rested each morning. The quality of this mattress is amazing! It appears this will last several years. And having the zip cover protector is a bonus! Overall, I love this mattress, it has changed my life in a very positive way! I totally would recommend it to anyone looking for new mattress.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Complete 180 in my sleep

Aderial 2/20/2020

My old bed was definitely in need of replacement, it had become a giant bowl for me to sleep in, and was causing me so many back problems. Since I switched to the iComfort CF4000 Hybrid Plush my nights are finally restful! It was different getting used to the cooling effect part of the bed when I first laid on it, but now my nights are so thankful for it. As someone who has issues with temperature regulation, and going from 9ver heating, and to cold, this bed allows me to have the extra blankets on my bed as I need them, but because of the cooling part I'm no longer over heating at night, like I did with my old bed, that even had a cooling topper on it. The only thing is now I have to buy all new sheets because of how deep the bed is, my normal sheets just don't fit, but it's completely worth every second with my new bed.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Excellent Products

AirforceDiva65 2/19/2020

iComfort CF4000 Hybrid Plush Mattress is a superior line of high quality products that's very comfortable and ensures a restful sleep. The comfort levels of the mattress is absolutely stupendously Awesome. Highly recommended
Originally posted on www.serta.com

Yes, I recommend this product

5 Stars

Incredibly comfortable and cool

CKC83 2/19/2020

I was a little skeptic that this mattress would actually keep us cooler when sleeping as I've had a couple now that have claimed that. However it really does seem to work. If you lay on it without sheets (when it first arrived) it is downright cold. It warms up quickly which also softens up the memory foam inside of it. So far it has not disappointed and the quality looks and feels like it's going to last a long time which is great compared to some of those new vacuum sealed mattresses
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Best Mattress

Lisahud2 2/19/2020

iComfort CF4000 Hybrid Plush is the Best Mattress I have ever owned , It is so Soft but not to soft , My Body just snuggles right it to the mattress , My Body doesn't get Hot in the Middle of the night , Now when My Husband gets out of Bed , It doesn't wake me up , The mattress doesn;t shake or move when we each turn over in bed , You just seem to sink into the Mattress , it adjusted to your body , My husband has Back Pain , since sleeping on the Mattress , it has helped his back some, Best Nights Sleep you can have
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

The Perfect Mattress.

Gray2863 2/18/2020

Serta iComfort CF4000 Hybrid Plush Mattress is absolutely wonderful!!! It has so many great features including a memory foam top, cooling properties and comfort that spares no expense. Very well made mattress! I believe this mattress will provide years of comfortability and the perfect softness for a great nights sleep. With great edge support as well. I have slept so well since having this mattress. This is the best mattress I've ever owned!!! I highly recommend the Serta iComfort CF4000 Hybrid Plush.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Soft and supportive

Bedtv 2/18/2020

I have been sleeping on this mattress for about a week now and am very impressed with the comfort . I have some back problems which makes sleeping good pretty difficult, and have tried mattress after mattress just trying to find something soft and comfortable yet still has the right amount of support. I feel like I finally found the perfect mixture of the two in this mattress. I haven't woke up sore or still all week . I have slept through the night almost every night since getting this mattress setup. I don't sink down in the bed like I have found with other plush mattresses, and don't feel like I'm sleeping on a board like firm mattresses feel to me personally. I can feel the support the moment I lay on it but I also feel softness and comfort. This thing is truly amazing. I am beyond happy with this and would definitely recommend it to anyone.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Best sleep ever!

ChristinaW 2/18/2020

Got this and had an amazing night's sleep the first night. Old mattress was broken down and seriously needed replacing. Soft but yet it supports the body and I'm not exactly a small person! Firm mattresses always make me hurt the next morning. Never knew I could have support AND soft plush feel. Every night since has been the same. Comfort and great sleep.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

The i Comfort CF4000 Hybrid Plush is very comfortable!

Reneeg47 2/18/2020

The i Comfort CF4000 Hybrid Plush is a very good matress! I've slept on it since I've gotten it and it really is comfortable. It's firm but not too much. It has the right amount of firmness. It's also very comfortable. And it's very plush too. It provides good support for my back too. And it's a very high quality product. I would recommend this mattress for everybody.
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support

 
5 Stars

Comfort at its finest!!!

Brittani 2/18/2020

I love, love, love my new mattress! It is soooo comfortable. Waking up in the morning was a breeze because the comfort of the mattress helped me to get a good night's rest and I can finally say that I wake up feeling rejuvenated. I am one happy customer!
Originally posted on www.serta.com

Yes, I recommend this product

Comfort

 

Quality

 

Support