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Serta® iComfort® Hybrid Blue Fusion 500 Extra Firm California King Mattress

Model #: 500821261-1070
At a Glance
Stomach and back sleepers rejoice! The Hybrid Blue Fusion 500 Extra Firm mattress has all the motion isolation and cooling technology that you need for a great night’s rest.
$2,299.00Save $NaN

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Get to know this product.

The firmest iComfort Hybrid model, the Blue Fusion 500 Extra Firm combines TempActiv™ Gel Memory Foam with a thick layer of Deep Reaction™ Max Memory Foam for cooling comfort with deep down support. Your body gets exceptional support from the Serta® Hybrid Coil™ support system, built to deliver the ideal trifecta of comfort, support and durability. With the soft yet durable TempActiv™ Balance Fabric, experience high-performance heat and moisture regulation for a comfortable night's rest.

  • Deep Reaction™ Memory Foam is exclusive to firmer mattresses and is designed to provide a substantial, deep-down feel not often found with traditional memory foam for comfort that doesn’t sag or sink
  • TempActiv™ Max Gel Memory Foam uses a combination of millions of temperature-absorbing gel beads and an extra gel layer to dissipate surface-heat levels while providing full body support
  • FireBlocker®, located within the quilted top, uses an exclusive blend of natural and synthetic fibers to slow the spread of fire
  • Pillow Soft® Aire, the supportive foam top layer, uses an innovative rippled design to promote better airflow
  • TempActiv™ Balance Fabric keeps the top mattress layer cool and comfortable with temperature and moisture regulation
  • Serta® Hybrid Coil™ provides support, resilience, and comfort for the ultimate in memory-foam benefits
  • iComfort® mattresses are compatible with Serta® standard or adjustable foundations; please contact store for details

Pioneering sleep science since 2011, iComfort® by Serta® is devoted to providing the most comfortable sleep ever, with mattresses tested to meet the demands of every lifestyle. Thanks to exclusive cooling technology and unbeatable foam and hybrid support, a growing number of satisfied sleepers have learned what it feels like to have the perfect night’s rest. Proudly made in the USA with CertiPUR-US® certified materials, iComfort® ensures your slumber is more than comfortable—it’s Serta comfortable®.



Fire Protection:FireBlocker® Fiber

Misc. Specs

Height (in.)14
Made InUSA
Mattress SizeCalifornia King
Width (in.)72
Length (in.)83.5
Manufacturer Warranty10 Year
Double Sided MattressNo
Mattress Comfort LevelExtra Firm
CollectionSerta iComfort Hybrid
Mattress ConstructionHybrid
WarningProposition 65 Warning for California Residents