Shopping for a mattress can be confusing, especially when brands use unique ways to describe themselves. With that in mind, we created this glossary to help you enjoy an informed shopping experience. Here, you’ll find some of the most-referenced names, phrases and technologies on our website — as well as their descriptions.

• Advanced SealyChill™ Technology
  Our cover with the most cooling fibers, paired with a cooling enhancement to the top foam layer in the mattress.

• Bed Aches™
  A representation of the pain you feel when sleeping on a bad mattress.

• Cocoon™ by Sealy
  Our bed-in-a-box mattress, featuring foam and hybrid models that are shipped via UPS and delivered right to your doorstep!

• Comfort Sense™ Gel Memory Foam
  Our most premium memory foam that adapts to your body, dispersing your weight evenly to relieve pressure points and maximize comfort.

• DuraFlex™ Coil Edge
  Our upgraded coil edge featuring encased springs to provide strong, durable support for a corner-to-corner sleeping surface.

• Hybrid Mattress
  A type of mattress that provides support through both foam and coils. The hybrid’s ratio of materials increases conforming comfort while retaining enough of the springs’ “bounce” to help with mobility.

• MaxSupport™ Technology
  A support system that utilizes extra coils expertly arranged throughout the mattress to maximize comfort and support.

• MoistureProtect™
  A mattress cover feature that helps wick away moisture so that your body stays cool and comfortable while you sleep.

• Posturepedic^® Mattress
  Through a partnership with orthopedic surgeons, we revolutionized the mattress industry, leading to the creation of the world-renowned Posturepedic^® line. Our unique design reinforces the center of the mattress, so the heaviest part of your body stays supported while your spine remains in its natural alignment throughout the night.

• PrecisionFit™ Coils
  Our exclusive dual-stage coils offer ultra-responsive comfort on the surface and deep-down support as you add pressure.

• SealyComfort™ Gel Foam
  A standard foam designed to disperse weight across the mattress and provide cushioning full-body comfort.

• SealyChill™ Technology
  This cover feature provides greater comfort through extra cooling fibers (as compared to the cool-to-the-touch mattress cover).

• Sealy Naturals™
  Our most environmentally friendly mattress features organic cotton, 100% natural biodegradable latex, and coils created from recycled steel.

• Surface-Guard™ Technology
  An antimicrobial feature that protects against common allergens and keeps the mattress cover fresh.

• Zero Gravity
  A preset on the Ease^® Adjustable Power Base that raises the head and foot of the bed into a position designed to simulate weightlessness by taking pressure off your joints.

We hope that purchasing your new bed becomes easier with the understanding you gained. Put your knowledge to the test and browse our collections! Purchases from our website come with a 90-night trial — see for yourself why Sealy^® is the most trusted mattress brand in America!

*Voted most trusted mattress brand by American shoppers based on the BrandSpark^® American Trust Study in 2024-2025.