City Mattress

Pegasus Firm Innerspring Mattress


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Why You’ll Love It

1 5 10
  • adjustable friendly

    Upgrade to better sleep— elevate your support and discover the perfect mattress with adjustable bed base compatibility.

  • innerspring mattress

    It's a classic for a reason— durable support and responsive springs combine for your best, undisturbed rest.


Experience exceptional sleep support with the upgraded design of our Pegasus Firm Innerspring Mattress from the exclusive Celestial Collection. Constructed by hand in the USA for enduring quality, the custom-milled fabric cover and two medium-firm and firm quilting foam layers work to instantly soothe— while SupportSense™ comfort foam padding layers minimize pressure point pain and ensure body impression resistance. Consistently supportive across the entire sleep surface, the advanced IsoCore™ innerspring system delivers ergonomic support with improved airflow and a zoned-edge design for your best night’s rest.


  • Handcrafted in the USA
  • Comfort: Firm
  • Custom-Milled Cover: Quality cover crafted from custom-milled fabrics selected for durability and comfort, along with dual-quilted layers for added pressure relief.
  • SupportSense™ Quilt Foam: Two quilting foam layers with a medium-firm and firm feel contribute to a comfortable sleep surface with firmer support that resists body impressions. 
  • SupportSense™ Comfort Foam (Comfort Layer): Two separate comfort foam layers with a medium-firm and firm density contour to your body for pressure relief with firm support and resists body impressions.
  • Insulator pads above and below the support system.
  • Advanced IsoCore™ Support System with Edge Zoning (Innerspring System): Uniquely-designed coils offer ergonomic support and reduce partner disturbances with zoned edge support that enhances stability and consistency. The open design improves airflow, breathability, and efficient heat transfer. (832 coils)
  • Firm SupportSense™ Support Foam (Base Layer): Foundational foam contributes to a comfortable sleep surface with firm support and a durable design resistant to body impressions.
  • CertiPUR-US® certified foams made without harmful chemicals.
  • Adjustable-friendly innerspring mattress
  • Twin Size Dimensions: 39" W x 75" D x 11” H
  • Twin XL Size Dimensions: 39" W x 80" D x 11” H
  • Full Size Dimensions: 54" W x 75" D x 11” H
  • Full XL Size Dimensions: 54" W x 80" D x 11” H
  • Queen Size Dimensions: 60" W x 80" D x 11” H
  • King Size Dimensions: 76" W x 80" D x 11” H
  • Cali King Size Dimensions: 72" W x 84" D x 11” H
  • Enhance your sleep support and take your comfort to the next level by adding our City Mattress Ergomotion 2.5 Adjustable Bed Base
  • Warranty: 10 year
We have purchased all of our bedding for the last 30 years from City Mattress and your products and services have been consistently excellent. Thank you!!! Newton B. Green II