19th Jul 2026, 02:32 PM
FATHOM Firm King Mattress 12 Inch Memory Foam Mattress King Size Bed in a Box for Back Pain Relief and Cool Sleep with Gel Foam and Removeable Fiberglass Free Cover, CertiPUR-US Certified
Price may vary by location, shipping cost, and availability.
11% Off
$339.99
$379.99
Highest: $379.99
Average: $363.11
Lowest: $290.69
Price History Graph
Offer Price Prices
Lowest: -
Average: -
Highest: -
Price History Information
You can check the price history of FATHOM Firm King Mattress 12 Inch Memory Foam Mattress King Size Bed in a Box for Back Pain Relief and Cool Sleep with Gel Foam and Removeable Fiberglass Free Cover, CertiPUR-US Certified here. This product's current Price in USA is $339.99. The average and highest prices are $363.11 and $379.99 respectively.
| Lowest Ever Price | $290.69 |
|---|---|
| 1st Oct 2025 | |
| Average Price | $363.11 |
| Based on 372 days price tracking | |
| Highest Price | $379.99 |
| 14th Jul 2025 | |
Price History of All Variants of FATHOM Firm King Mattress 12 Inch Memory...
Current Price in USA
| Price | $339.99 |
|---|---|
| MRP | $379.99 |
| Savings | $40.00 |
| Discount | 10.52% |
Recent Price Drops on FATHOM Firm King Mattress 12 Inch Memory Foam Mattress King Size Bed in a Box for Back Pain Relief and Cool Sleep with Gel Foam and Removeable Fiberglass Free Cover, CertiPUR-US Certified
Price Drop 12th Jul 2026
$379.99 → $339.99
10.53% drop
Price Drop 22nd Jun 2026
$379.99 → $319.89
15.82% drop
Price Drop 25th May 2026
$379.99 → $339.99
10.53% drop
Price Drop 24th Mar 2026
$379.99 → $319.89
15.82% drop
Price Drop 8th Feb 2026
$379.99 → $319.89
15.82% drop
Price Drop 14th Jan 2026
$379.99 → $322.98
15% drop
Price Drop 17th Dec 2025
$379.99 → $322.98
15% drop
Price Drop 30th Sep 2025
$379.99 → $290.69
23.5% drop
Price Drop 10th Sep 2025
$379.99 → $329.99
13.16% drop
Price Drop 2nd Aug 2025
$379.99 → $312.08
17.87% drop
Price Drop 15th Jul 2025
$379.99 → $346.76
8.74% drop
Product Information
Details
| Product Name | FATHOM Firm King Mattress 12 Inch Memory Foam Mattress King Size Bed in a Box for Back Pain Relief and Cool Sleep with Gel Foam and Removeable Fiberglass Free Cover, CertiPUR-US Certified |
|---|---|
| Store Product Code | B0F6394D16 |
| Store Name | amazon.com |
| Brand | FATHOM |
| Rating | 9.2 / 10 |
| Category | Mattresses |
| Size | King (U.S. Standard) |
| Dimensions | 80"L x 76"W x 12"Th |
Features
- Advanced Cooling Comfort: The AeroFusion gel memory foam mattress ensures exceptional breathability and heat dissipation, adapting precisely to your bodys contours while resisting temperature sensitivity. Enjoy cool, cradling comfort no matter the season.
- Premium, Thoughtful Design: Wrapped in a soft, geometric-patterned jacquard fabric with stylish light gray graphene yarn borders. The fiberglass-free mattress cover is not only elegant but functional, featuring a zipper for easy removal and cleaning.
- Motion Isolation Technology: Dynamic memory foam mattress contours to your bodys unique curves, filling gaps to support optimal spinal alignment while effectively lowering motion transfer and noise, ensuring a serene and undisturbed sleep environment where everyone wakes up refreshed, ideal for couples and kids.
- Certified Safe Material: Crafted in the USA with CertiPUR-US foams and globally sourced Oeko-Tex certified fabrics, our king mattress is free from harmful substances. Backed with a 10-year protection, Fathom mattress is designed to promote spinal health and long-term durability for a healthy lifestyle.
- Effortless Setup: The Fathom mattress in a box is vacuum-packed, compressed and rolled for easy movement and installation. Simply open and unroll your memory foam mattress, then enjoy it within 72 hours for full expansion.
Images
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Rating and Reviews
9.2 Based on 868 reviews
FATHOM Firm King Mattress 12 Inch Memory has 9.2 rating out of 10. This average rating is consist of 868 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.