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Siena 10 inch California King Memory Foam
8th Feb 2026, 08:51 PM

Siena 10 inch California King Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Warranty - Mattress in a Box - CertiPUR-US Certified

Price may vary by location, shipping cost, and availability.
Highest: $608.27
Average: $492.21
Lowest: $88.99

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Based our analysis and observation, there is 41.00% chance that the price of Siena 10 inch California King Memory Foam... will increase. Price of product might fluctuate between 7% and 11% of current price.*

Price History Graph

Offer Price Prices
Lowest: -
Average: -
Highest: -

Price History Information

You can check the price history of Siena 10 inch California King Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Warranty - Mattress in a Box - CertiPUR-US Certified here. This product's current Price in USA is $399.00. The average and highest prices are $492.21 and $608.27 respectively.

Lowest Ever Price $88.99
8th Jul 2024
Average Price $492.21
Based on 1426 days price tracking
Highest Price $608.27
31st Oct 2024

Price History of All Variants of Siena 10 inch California King Memory Foam...

Current Price in USA

Price $399.00

Recent Price Drops on Siena 10 inch California King Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Warranty - Mattress in a Box - CertiPUR-US Certified

Price Drop 23rd Jan 2026
$399.00 $349.00
12.53% drop
Price Drop 24th Dec 2025
$495.77 $399.00
19.52% drop
Price Drop 19th Nov 2025
$469.79 $336.62
28.35% drop
Price Drop 13th Nov 2025
$529.20 $469.79
11.23% drop
Price Drop 24th Jul 2025
$435.91 $299.00
31.41% drop
Price Drop 13th Jul 2025
$527.73 $440.66
16.5% drop
Price Drop 28th Jun 2025
$483.25 $298.00
38.33% drop
Price Drop 23rd Jun 2025
$516.00 $483.00
6.4% drop
Price Drop 20th May 2025
$483.27 $298.00
38.34% drop
Price Drop 13th Apr 2025
$497.47 $337.16
32.23% drop
Price Drop 8th Apr 2025
$548.33 $497.47
9.28% drop
Price Drop 31st Jan 2025
$568.74 $537.01
5.58% drop
Price Drop 16th Jan 2025
$585.38 $449.00
23.3% drop
Price Drop 19th Nov 2024
$599.07 $474.05
20.87% drop
Price Drop 19th Sep 2024
$543.61 $89.99
83.45% drop
Price Drop 4th Sep 2024
$579.87 $519.35
10.44% drop
Price Drop 7th Jul 2024
$535.53 $88.99
83.38% drop
Price Drop 18th Jan 2024
$499.00 $474.00
5.01% drop
Price Drop 3rd Jan 2024
$499.00 $459.79
7.86% drop
Price Drop 13th Dec 2023
$499.00 $474.00
5.01% drop
Price Drop 26th Sep 2023
$499.00 $474.00
5.01% drop
Price Drop 14th Sep 2023
$499.00 $459.08
8% drop
Price Drop 31st Aug 2023
$498.99 $409.18
18% drop
Price Drop 5th Aug 2023
$499.00 $449.10
10% drop
Price Drop 29th Jun 2023
$469.10 $429.14
8.52% drop
Price Drop 28th Jun 2023
$499.00 $469.10
5.99% drop
Price Drop 8th Jun 2023
$499.00 $439.17
11.99% drop
Price Drop 2nd Jun 2023
$427.36 $399.24
6.58% drop
Price Drop 24th May 2023
$499.00 $399.00
20.04% drop
Price Drop 9th May 2023
$499.00 $464.37
6.94% drop
Price Drop 28th Feb 2023
$442.71 $406.02
8.29% drop
Price Drop 25th Feb 2023
$474.34 $442.71
6.67% drop
Price Drop 23rd Feb 2023
$527.04 $474.34
10% drop
Price Drop 8th Feb 2023
$599.00 $549.00
8.35% drop
Price Drop 29th Dec 2022
$599.00 $468.87
21.72% drop
Price Drop 13th Dec 2022
$507.78 $371.60
26.82% drop
Price Drop 30th Nov 2022
$587.02 $499.00
14.99% drop
Price Drop 14th Nov 2022
$503.02 $371.57
26.13% drop
Price Drop 2nd Nov 2022
$509.15 $437.14
14.14% drop
Price Drop 22nd Oct 2022
$461.81 $413.88
10.38% drop
Price Drop 20th Oct 2022
$486.12 $461.81
5% drop
Price Drop 17th Oct 2022
$566.98 $538.63
5% drop
Price Drop 2nd Aug 2022
$597.01 $348.72
41.59% drop
Price Drop 20th Jul 2022
$599.00 $514.40
14.12% drop
Price Drop 11th Jul 2022
$598.96 $464.96
22.37% drop

Product Information

Details

Product Name Siena 10 inch California King Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Warranty - Mattress in a Box - CertiPUR-US Certified
Store Product Code B09RF4ZZ7C
Store Name amazon.com
Brand Siena
Rating 9 / 10
Category Mattresses
Product Manufacturer Siena Mattress
Model Number sienamattress-s:calking
Color White
Size California King
Dimensions 84"L x 72"W x 10"H

Features

  • 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 theres 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 doesnt 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 wont be disturbed if your partner or pet moves.
  • MEMORY FOAM - A 2 layer of pressure relieving 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
  • SAFE & FIBERGLASS FREE - Your Siena mattress is made without ozone depletors, mercury, lead, formaldehyde, phthalates and other harmful substances that can be in consumer products

Images

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Image of Siena 10 inch California King Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Warranty - Mattress in a Box - CertiPUR-US Certified
Image of Siena 10 inch California King Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Warranty - Mattress in a Box - CertiPUR-US Certified
Image of Siena 10 inch California King Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Warranty - Mattress in a Box - CertiPUR-US Certified
Image of Siena 10 inch California King Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Warranty - Mattress in a Box - CertiPUR-US Certified
Image of Siena 10 inch California King Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Warranty - Mattress in a Box - CertiPUR-US Certified
Image of Siena 10 inch California King Memory Foam Mattress - Medium Firm - 180 Night Trial - Premium Pressure-Relieving Layers - 10 Year Warranty - Mattress in a Box - CertiPUR-US Certified

Rating and Reviews

9 Based on 979 reviews

Siena 10 inch California King Memory Foam has 9 rating out of 10. This average rating is consist of 979 individual ratings. You can rate this product at product review page.

* Predictions is created on based of past prices and trends, it does not guarantee that it will happen. These are just prediction for theoretical information only.