Serta iComfort CF4000 Ultra Plush Mattress

3 reviews


Experience one of the coolest iComfort models ever, with the iComfort CF4000 Ultra Plush Mattress. 

The 13.5" Serta iComfort CF4000 Ultra Plush mattress has 3 cooling layers; with Deep Reaction™ Max Memory Foam, Serta® Support Foam, and Air Support™ Foam for a plush, soft feel.

Serta’s exclusive Carbon Fiber Memory Foam, channels heat away from your body and provides exceptional strength for back and neck support. 

Air Support™ Foam features an exclusive air-cushion technology moves with your body and smartly contours around it to help alleviate aches and pains caused by pressure points.

  • Air Support™ Foam Contours Your Body to Alleviate Aches and Pains Caused by Pressure Points
  • Max Cold™ Cover - Made from super cool high-performance fibers for an instant cool-to-the-touch sensation.
  • UltraCold System™ - This premium cooling technology is engineered to work hard at absorbing excess heat from your body while you sleep comfortably.
  • Carbon Fiber Memory Foam - Carbon fibers embedded in the foam channel heat away from your body and provide exceptional strength for back and neck support.
  • Air Support™ Foam - Exclusive air-cushion technology moves with your body and smartly contours around it to help alleviate aches and pains caused by pressure points.
Customer Reviews
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    Better sleep!

    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!!

    Jason C.

    It's the best

    After sleeping on a serta for 10yrs I thought I would try some of the other new mattress brands on the market. The ones with fun marketing commercials and in-home trials and all that no hassle stuff. What do I have to lose right? Having gone through a three of those mattresses now, I can tell you that I had four very uncomfortable months of sleep to lose. My wife and I both had terrible hip and back pain, restless nights, and difficulty even wanting to go to bed. Finally I looked up serta and went with a tried and true, a tested and proven comfortable bed. Does it cost a little more? YES. After having handled and slept on the other mattresses that also had the same length of warranty, I can tell you there's no way those things were going to last the 10 years that this will. So if I divide this price by 10 it's the cost of two nights at a hotel per year for the next 10 years. If you put it in a perspective like that... It's 3,600 nights. Is it worth it? Absolutely. I sleep hot. Like ridiculously hot. I take an SSRI everyday and it leads to an awful about of night sweats most nights. I finally stay cool in my serta. We got the max cool options and they are worth every penny. It doesn't stop me from sweating, but it doesn't add to the problem the way every other mattress did. Even the sleep cool guarantees and ultra air flow options that we tried on other brands. Supportive? Plush? Of Course. We got comparable models from the other brands, the models that boast of hip and back support. Models that were supposed to be cradling all the curves... It never happened. It seemed until this serta mattress came that we would have to get a firm, hard mattress in order to find anything with support. Which neither of us wanted. The ultra plush more than delivered cradling every thing that needed to be cradled and being wonderfully soft to the touch and through the night.


    Super cool and comfort at night

    We've had the i Comfort CF4000 for about 10 days and love it. Here in southern Louisiana staying cool at night to sleep is of concern and one of the reasons we waited to get a memory foam mattress. Well you got it right. My wife who always sleeps with socks decided to sleep without them the first night on the new mattress and bed. She woke up complaining her feet were cold. She now sleeps through the night as do I. We both had problems with snoring but the Motion Essentials IV Split King Adjustable Base allowed us to adjust our head height independently and slept silently for the first time in years. This bed is what we needed as I sleep on my side and on my back and always feel support on this mattress. One problem is where can I get the headboard mounts that I need?