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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Beautyrest Black K-Class Firm Pillowtop
Starting at $3,099
Do you sleep hot? This bed is for you! BlackIce™ 4.0 technology is in every Beautyrest Black® bed for a cooler, more restful sleep.
Our Luxury Pressure Relief, Your Best Rest. Curated Technoluxe foams reduce pressure points in your hips and shoulders
World’s Premier Support System. Tripled. We elevate the design and performance of our legendary support in Beautyrest Black with our exclusive T3 Pocketed Coil® Technology. Three steel strands wound into one coil absorb energy, reduce motion and provide exceptional resilience for support, durability and undisturbed sleep.
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.
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.
Find out if you are eligible for FREE delivery:
Size Guide
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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