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Showing 64–72 of 144 results

  • SERTA 2020 ICOMFORT HP TWIN FOUNDATION

    $199
    Own it in 12 months
    Progressive Leasing
    Add to cart

  • SEALY 2018 POSTUREPEDIC LP KING BOX(Set)

    $398
    Own it in 12 months
    Progressive Leasing
    Add to cart

  • SEALY 2018 POSTUREPEDIC LP CALIFORNIA KING BOX(Set)

    $498
    Own it in 12 months
    Progressive Leasing
    Add to cart

  • SEALY 2018 POSTUREPEDIC LP QUEEN BOX

    $299
    Own it in 12 months
    Progressive Leasing
    Add to cart

  • SEALY 2018 POSTUREPEDIC LP FULL BOX

    $299
    Own it in 12 months
    Progressive Leasing
    Add to cart

  • SEALY 2018 POSTUREPEDIC LP TWIN BOX

    $199
    Own it in 12 months
    Progressive Leasing
    Add to cart

  • SEALY 2018 POSTUREPEDIC KING BOX(Set)

    $498
    Own it in 12 months
    Progressive Leasing
    Add to cart

  • SEALY 2018 POSTUREPEDIC CALIFORNIA KING BOX(Set)

    $498
    Own it in 12 months
    Progressive Leasing
    Add to cart

  • SEALY 2018 POSTUREPEDIC QUEEN SPLIT BOX((Set)

    $449
    Own it in 12 months
    Progressive Leasing
    Add to cart

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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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