Description

About This

  • 180-NIGHT HOME TRIAL & 10 YEAR MANUFACTURER WARRANTY - Rest easy with a Siena mattress. You'll enjoy a 180-night home trial, and we stand by our product – if there’s any defect or flaw in your Siena in the first 10 years, we'll replace or repair it for free.
  • FIVE LAYERS OF COMFORT - Siena doesn’t compromise on comfort. We might cost a lot less than our competitors, but your Siena mattress sure packs a punch when it comes to responsive comfort, supporting proper spinal alignment, and relieving pressure points. With lots of motion-reducing foam, you won’t be disturbed if your partner or pet moves.
  • GEL MEMORY FOAM - A 2” layer of pressure relieving gel memory foam adapts to your unique body shape and size, while contouring to your curves.
  • MEDIUM FIRM AND SUPPORTIVE - Finding the perfect firmness is a breeze with Siena. It's medium-firm, striking the ideal balance between comfort and support for a restful night's sleep.
  • SIMPLE TO SET UP - Just move the box to the room you want to use it in, unbox and unroll your mattress, and watch it expand before your eyes. Your Siena will be snooze-ready in 24 hours!

Overview

  • Brand : Siena
  • Size : California King
  • Product Dimensions : 84"L x 72"W x 10"Th
  • Top Style : Gel Top
  • Number of Layers : 5
  • Fill Material : Memory Foam
  • Special Feature : Pressure-Relieving Gel Memory Foam, CertiPUR-US® Certified, Simple to Set Up, Medium Firm, Breathable Pressure-Relieving Gel Memory Foam, CertiPUR-US® Certified, Simple to Set Up, Medium Firm, Breathable
  • Color : White
  • Coil Type : Continuous Coil
  • Model Name : Siena
  • : Item Weight 85 Pounds Item Firmness Description Medium Firm
  • : Item Weight 85 Pounds
  • : Item Firmness Description Medium Firm
  • : Age Range (Description) Adult Construction Type Memory Foam
  • : Age Range (Description) Adult
  • : Construction Type Memory Foam
Product form
  • Siena

Siena 10” California King Gel Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Manufacturer Warranty - CertiPUR-US® Certified

    About This 180-NIGHT HOME TRIAL & 10 YEAR MANUFACTURER WARRANTY - Rest easy with a Siena mattress. You'll enjoy a...

    $839.01

    30 in stock

    • Shipped today? Order within: Jun 08, 2026 17:00:00 -0700

      • Guaranteed secure & safe checkout.

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      Runs small True to size Runs large

      Description

      About This

      • 180-NIGHT HOME TRIAL & 10 YEAR MANUFACTURER WARRANTY - Rest easy with a Siena mattress. You'll enjoy a 180-night home trial, and we stand by our product – if there’s any defect or flaw in your Siena in the first 10 years, we'll replace or repair it for free.
      • FIVE LAYERS OF COMFORT - Siena doesn’t compromise on comfort. We might cost a lot less than our competitors, but your Siena mattress sure packs a punch when it comes to responsive comfort, supporting proper spinal alignment, and relieving pressure points. With lots of motion-reducing foam, you won’t be disturbed if your partner or pet moves.
      • GEL MEMORY FOAM - A 2” layer of pressure relieving gel memory foam adapts to your unique body shape and size, while contouring to your curves.
      • MEDIUM FIRM AND SUPPORTIVE - Finding the perfect firmness is a breeze with Siena. It's medium-firm, striking the ideal balance between comfort and support for a restful night's sleep.
      • SIMPLE TO SET UP - Just move the box to the room you want to use it in, unbox and unroll your mattress, and watch it expand before your eyes. Your Siena will be snooze-ready in 24 hours!

      Overview

      • Brand : Siena
      • Size : California King
      • Product Dimensions : 84"L x 72"W x 10"Th
      • Top Style : Gel Top
      • Number of Layers : 5
      • Fill Material : Memory Foam
      • Special Feature : Pressure-Relieving Gel Memory Foam, CertiPUR-US® Certified, Simple to Set Up, Medium Firm, Breathable Pressure-Relieving Gel Memory Foam, CertiPUR-US® Certified, Simple to Set Up, Medium Firm, Breathable
      • Color : White
      • Coil Type : Continuous Coil
      • Model Name : Siena
      • : Item Weight 85 Pounds Item Firmness Description Medium Firm
      • : Item Weight 85 Pounds
      • : Item Firmness Description Medium Firm
      • : Age Range (Description) Adult Construction Type Memory Foam
      • : Age Range (Description) Adult
      • : Construction Type Memory Foam

      Size chart

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