Firmest support system with little to no cushion layer on top. These ultra-firm mattresses are typically best for stomach sleepers.
Firm
Firm support system with a minimal cushion layer on top. These firm mattresses are typically best for back and stomach sleepers.
Medium
Firm support system with added layers of cushion on top. These medium mattresses are typically best for all sleepers, including back, stomach, and side!
Plush
Softer support system with additional layers of cushion on top. These plush mattresses are soft enough for side sleepers, but still fit all sleeping types, including back and stomach sleepers.
Ultra-Plush
Softest support system, and the most added layers of cushion on top. These ultra-plush mattresses are typically best for side sleepers.
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Serta iComfort CF4000 Firm
The CF4000 Firm model boasts a cooling comfort and features even more temperature-regulating technology.
The CF4000 Firm model boasts a cooling comfort and features even more temperature-regulating technology.
It combines our UltraCool PCM and Max Cool PE Cover with an additional two layers of quality memory foams for an instant “cool-to-the-touch” feeling and enhanced temperature regulation. A layer of Carbon Fiber Memory Foam offers a more supportive feel to the memory foam layers, creating a sturdy and comfortable firm feel.
The CF4000 also features:
Serta iComfort Cooling Technology
Max Cool PE Cover
Carbon Fiber Memory Foam
UltraCool PCM
Deep Reaction Max
Serta Support Foam
Additional information
Size
California King
King
King Split
Queen
Twin XL
Comfort Level
Firm
Brand
Serta iComfort
Mattress Types
Memory Foam
Sleep Position
Side
Foundation
BedTech 2000 Adjustable Base (Good)
BedTech 3000 Adjustable Base (Better)
BedTech 4000 Adjustable Base (Best)
High Profile – 9" Box Spring
Low Profile – 5" Box Spring
No thank you – Mattress Only
Frame
Heavy Duty Frame
No thank you
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While you can't go wrong with any of our mattresses, here are a few factors you'll want to consider before making a purchase: your sleep position (and if you have a partner, theirs as well), the size of the space, and a price point. If you have any questions, rest easy knowing that our team is happy to help you find that perfect fit.
Size
Dimensions
Twin
38″ wide x 75″ long x 9.25″ tall
Twin XL
38″ wide x 80″ long x 9.25″ tall
Full
54″ wide x 75″ long x 9.25″ tall
Queen
60″ wide x 80″ long x 9.25″ tall
King
76″ wide x 80″ long x 9.25″ tall
Cal King
72″ wide x 84″ long x 9.25″ tall
Split King (2pk)
38″ wide x 80″ long x 9.25″ tall
Foundations
Mattress World Northwest makes it easy to choose the right foundation for your space and lifestyle.
Adjustable
Dynamic adjustments improve comfort
Known to help relieve a myriad of health issues
Shipped boxed for easy installation
Platform
Utilizes closely set wodden slats
Ships boxed for easy install
Does not require a boxspring for support
Boxspring
Traditional mattress foundation
Compatible with most bedroom furniture
Can be used with simple steel frame
Bed Frames
Reliable support for your boxspring and mattress.
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