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.
$399.00
Highest: $608.27
Average: $492.21
Lowest: $88.99
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
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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.