Siena 8” Cal King Gel Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Manufacturer Warranty - CertiPUR-US® Certified
Siena 8” Cal King Gel Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Manufacturer Warranty - CertiPUR-US® Certified
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Siena

Siena 8” Cal King Gel Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Manufacturer Warranty - CertiPUR-US® Certified

Siena 8” Cal King Gel Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Manufacturer Warranty - CertiPUR-US® CertifiedSiena 8 Cal King Gel Memory Foam Mattress Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Manufacturer Warranty CertiPUR US CerSiena 8 Full Gel Memory Foam Mattress Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Manufacturer Warranty CertiPUR US CertifiSiena 6 Twin XL Foam Mattress Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Warranty CertiPUR US CertifiedSiena 6 Essential Hybrid Twin Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress in a BoxSiena 8 Queen Gel Memory Foam Mattress Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Manufacturer Warranty CertiPUR US CertifSiena 8 Essential Hybrid Twin XL Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress in a BoxSiena 8 King Gel Memory Foam Mattress Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Manufacturer Warranty CertiPUR US CertifiSiena 6 Essential Hybrid Full Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress in a BoxSiena 8 Essential Hybrid Full Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress in a BoxSiena 8 Twin Mattress Gel Memory Foam Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Manufacturer Warranty CertiPUR US CertifiSiena 6 Queen Foam Mattress Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Warranty CertiPUR US CertifiedSiena 6 Essential Hybrid Queen Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress in a BoxSiena 6 King Foam Mattress Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Warranty CertiPUR US CertifiedSiena 8 Essential Hybrid California King Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress BoxSiena 6 Essential Hybrid King Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress in a BoxSiena 6 Full Foam Mattress Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Warranty CertiPUR US CertifiedSiena 6 Essential Hybrid Twin XL Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress in a BoxSiena 6 Essential Hybrid California King Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress BoxSiena 8 Essential Hybrid King Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress in a BoxSiena 8 Essential Hybrid Twin Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress in a BoxSiena 8 Essential Hybrid Queen Mattress Medium Firm Memory Foam Innerspring System 180 Night Trial Pressure Relief Mattress in a BoxSiena 6 California King Foam Mattress Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Manufacturer Warranty CertiPUR US CertifiSiena 8 Twin XL Gel Memory Foam Mattress Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Manufacturer Warranty CertiPUR US CertSiena 6 Twin Foam Mattress Medium Firm 180 Night Trial Premium Pressure Relieving Layers 10 Year Manufacturer Warranty CertiPUR US Certified
Bed Size:California King
Material:Memory Foam
Mattress Thickness:8 in

Key item features

  • 180-NIGHT HOME TRIAL and 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.
  • FOUR 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.
  • MEDIUM FIRM AND SUPPORTIVE - Finding the perfect firmness is a breeze with the 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.
  • CertiPUR-US CERTIFIED - Your Siena meets all CertiPUR-US rigorous standards for materials, emissions, product durability and performance. This is an assessment made by independent, accredited testing laboratories. It means your Siena is made without ozone depletors, mercury, lead, formaldehyde, phthalates and other harmful substances that can be in consumer products.
Current price is $349.00
Price when purchased online
  • Free shipping
  • Free 90-day returns
Walmart Accident Plan by Allstate
Pro Haul Away Service

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Arrives by Fri, Jun 19
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Sold and shipped by ResidentPro Seller
5 stars out of 5, based on 13 seller reviews(5.0)
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About this item

Product details

Specifications

Warranty

Customer ratings & reviews

4.6 out of 5 stars
stars91 ratings51 reviews
How item rating is calculated
  1. 5 stars78% (71)
  2. 4 stars12% (11)
  3. 3 stars5% (5)
  4. 2 stars3% (3)
  5. 1 star1% (1)

Reviews summary

Pros

  • : Provides a supportive sleeping surface.
  • : Provides a comfortable mattress at an affordable price.
  • : Setup process is quick and easy to follow.
  • : Provides a comfortable sleeping surface.

Neutral

  • : Offers varying firmness, ranging from too soft to ideal.
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Showing 1-3 of 51 reviews

May 21, 2026
anonymous
Item details
Bed size: Twin
Material: Memory Foam
Mattress thickness: 6 in
Sold and shipped byResident
5 out of 5 stars review

Verified Purchase

as advertised.works great for me.very good quality.

Helpful?6AKHSQMV6OI016666770410
Mar 9, 2026
Daphnie
Item details
Bed size: Twin
Material: Memory Foam
Mattress thickness: 8 in
Sold and shipped byResident
5 out of 5 stars review

Verified Purchase

Comfortable sort

Helpful?6AKHSQMV6OI016666770410
Jan 8, 2026
Jalena D.
5 out of 5 stars review

Everything from the delivery to

Everything from the delivery to the setting up was super easy and worry free. I needed a better mattress than the one I had for the last 10 years and a nice upgrade. It has been so nice!! I would definitely buy another bed from them in the future! 10/10 recommend :)

Review from Siena
Helpful?6AKHSQMV6OI016666770410