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iComfort - CF4000 - Plush - Cal King

Model No: Serta 500800518CALKING

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  • Max Cool Cover
  • UltraCold System™
  • Carbon Fiber Memory Foam
  • EverCool® Supreme Memory FoamCarbon
  • Air Support™ Foam

Available Sizes

The CF4000 Plush mattress features layers of Carbon Fiber Memory Foam paired with the UltraCold System™ to help channel heat away from your body. Our exclusive Air Support™ Foam contours to your body and helps relieve aches and pain caused by pressure points. This premium plush mattress is one of the coolest iComfort models ever!

No rebates currently available for this model.

Average Rating

out of 5 ( 41 Reviews)

0-5 of 41 Reviews |

Hard as rock

by: Quintcy84

No, I would not recommend this to a friend.


Submitted: 07-26-2022

Paid a lot of money for a plush mattress with no springs but I do believe the floor would be a softer option. Could barely move in the morning will have to resort to sleeping on my soft sofa again very disappointed very hard bed.

Not as plush as my old Icomfort plush matrress

by: Rdunkleenr2d

No, I would not recommend this to a friend.


Submitted: 04-01-2022

I had an IComfort plush mattress for 9nyears. I decided to replace it. I bought it through a local dealer on line. It was delivered and I immediately sat on it to check the comfort level. With the old mattress when it was delivered I sank down into a cloud of heavenly comfort. This new CF3000 feels like like it has the comfort level of laying on a board. The tag says “Plus” but as far as I’m concerned it is at least medium if not firm. I called the retailer an they said it could take up to 3-4 weeks to achieve the plush comfort level. My old iComfort was Plush as soon as it was delivered. I’ll give it a week then see where it is at with the comfort level.

Very comfortable for sure!

by: TonyG

Yes, I would recommend this to a friend.


Submitted: 02-08-2022

I am very satisfied with this mattress and so glad I have chosen the CF 4000 Plush Serta! I now fall asleep quicker and sleep more soundly through the night. Most of the back pain (which had been getting worse) has diminished significantly. I would highly recommend this product to anyone looking to replace their mattress.

Don’t buy it

by: CassieJ1025

No, I would not recommend this to a friend.


Submitted: 02-01-2022

I have had my king mattress for 5-6 years. It was firm when I bought it and it’s named and marketed as FIRM. now it’s like sleeping in a pit. It also will not lay flat anymore and I only weigh 140lbs. Hugely disappointed and not Worth the $$ spent. I should have and could have bought a tempurpedic with how much I spent. And I just discovered today that the layers are not even in a solid encasement. No wonder the sheets don’t stay on the bed all the layers inside move every time you move and not just up and down. So so dissatisfied.

Better sleep!

by: Ken72

Yes, I would recommend this to a friend.


Submitted: 08-14-2021

Both my wife and I love our new CF4000 Plush XL mattresses. We both are enjoying much better sleep with less waking during the night. We love the mattresses!!
0-5 of 41 Reviews |
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