Serta Perfect Sleeper Keynes Firm

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The Only Official Mattress of the National Sleep Foundation


Pressure Relieving Comfort:

-Advanced Comfort Quilt® helps distribute weight evenly, improve circulation and reduce pressure points. Firm comfort foam for a firmer feel.

Proper Back Support:

-Serta's exclusive Continuous Support® Innerspring is designed using rows of continuous coils that run head-to-toe, with each coil attaching to its neighbors for more stability and durability.

Balanced Temperature:

-Cool Balance™ Fabric Technology moves excss heat away from the body to keep you more comfortable while you sleep.

Undisturbed Sleep:

-Head to Toe Support System helps prevent one sleepers movements from disturbing the other.

Prevents Edge Roll-Off:

-Comfort Last™ Construction: Tested beyond industry standards for durability.

Bottom Line Is this a good bed for you?

Fit: Recommended for people who...

Prefer to sleep on their back
Prefer to sleep on their stomach
Prefer only a bit of softness

Function: Rated for its...

Motion Isolation
Pressure Relief

Features: Contains...

  • Foam
  • Gel
  • Gel Foam
  • Innerspring
See specs for the Keynes Firm »

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Q&A Keynes Firm

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Model Features Keynes Firm

Comfort Level:
Surface Type:
Tight Top


Mattress Components:


Overall Build
  • No-Flip
  • Mattress Thickness: 9"

About this Model Keynes Firm

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Serta Perfect Sleeper
Model Name:
Keynes Firm

Additional Information Keynes Firm


The Keynes Firm is a tight top firm mattress model that is part of the Perfect Sleeper product line manufactured by Serta.


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