28th Jan 2026, 11:50 AM
Siena 8 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.
$299.00
Highest: $482.65
Average: $378.17
Lowest: $88.99
Price History Graph
Offer Price Prices
Lowest: -
Average: -
Highest: -
Price History Information
You can check the price history of Siena 8 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 $299.00. The average and highest prices are $378.17 and $482.65 respectively.
| Lowest Ever Price | $88.99 |
|---|---|
| 9th Jul 2024 | |
| Average Price | $378.17 |
| Based on 885 days price tracking | |
| Highest Price | $482.65 |
| 11th Dec 2024 | |
Price History of All Variants of Siena 8 inch California King Memory Foam...
Current Price in USA
| Price | $299.00 |
|---|
Recent Price Drops on Siena 8 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 14th Jan 2026
$349.00 → $299.00
14.33% drop
Price Drop 19th Nov 2025
$320.74 → $244.00
23.93% drop
Price Drop 16th Oct 2025
$395.02 → $296.65
24.9% drop
Price Drop 1st May 2025
$404.74 → $199.00
50.83% drop
Price Drop 31st Jan 2025
$421.27 → $371.27
11.87% drop
Price Drop 3rd Jan 2025
$450.58 → $425.28
5.61% drop
Price Drop 22nd Dec 2024
$481.76 → $454.74
5.61% drop
Price Drop 19th Nov 2024
$474.98 → $342.00
28% drop
Price Drop 5th Nov 2024
$444.64 → $238.99
46.25% drop
Price Drop 2nd Nov 2024
$478.11 → $444.64
7% drop
Price Drop 28th Oct 2024
$474.83 → $184.35
61.18% drop
Price Drop 13th Oct 2024
$433.81 → $368.70
15.01% drop
Price Drop 19th Sep 2024
$419.39 → $89.99
78.54% drop
Price Drop 5th Sep 2024
$449.98 → $416.24
7.5% drop
Price Drop 19th Aug 2024
$449.47 → $413.51
8% drop
Price Drop 12th Aug 2024
$445.94 → $362.09
18.8% drop
Price Drop 6th Aug 2024
$378.97 → $357.98
5.54% drop
Price Drop 29th Jul 2024
$438.84 → $378.97
13.64% drop
Price Drop 21st Jul 2024
$400.63 → $371.23
7.34% drop
Price Drop 17th Jul 2024
$440.25 → $400.63
9% drop
Price Drop 8th Jul 2024
$423.42 → $88.99
78.98% drop
Price Drop 9th Jun 2024
$417.58 → $99.99
76.05% drop
Price Drop 27th May 2024
$325.64 → $298.26
8.41% drop
Price Drop 21st May 2024
$325.42 → $304.32
6.48% drop
Price Drop 19th May 2024
$400.42 → $325.42
18.73% drop
Price Drop 4th May 2024
$395.51 → $289.30
26.85% drop
Price Drop 17th Apr 2024
$345.32 → $322.18
6.7% drop
Price Drop 9th Apr 2024
$326.71 → $308.21
5.66% drop
Price Drop 16th Mar 2024
$367.01 → $331.11
9.78% drop
Price Drop 4th Mar 2024
$379.87 → $354.57
6.66% drop
Price Drop 26th Feb 2024
$397.90 → $371.79
6.56% drop
Price Drop 18th Feb 2024
$423.30 → $397.90
6% drop
Price Drop 12th Feb 2024
$460.11 → $418.70
9% drop
Price Drop 3rd Feb 2024
$380.30 → $342.27
10% drop
Price Drop 1st Feb 2024
$422.55 → $380.30
10% drop
Price Drop 11th Jan 2024
$474.49 → $317.21
33.15% drop
Price Drop 7th Dec 2023
$399.00 → $339.15
15% drop
Price Drop 23rd Nov 2023
$359.00 → $339.15
5.53% drop
Price Drop 13th Nov 2023
$399.00 → $359.00
10.03% drop
Product Information
Details
| Product Name | Siena 8 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 | B0CL114C8F |
| Store Name | amazon.com |
| Brand | Siena |
| Rating | 9 / 10 |
| Category | Mattresses |
| Product Manufacturer | Siena Mattress |
| Model Number | sienaeightmatt-s:calking |
| Size | California King |
| Dimensions | 84 x 72 x 8 inches |
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 theres 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 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 1.5" 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 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.
- 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 1208 reviews
Siena 8 inch California King Memory Foam has 9 rating out of 10. This average rating is consist of 1208 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.