FATHOM Medium Full Mattress 14 Inch Memory Foam Mattress Full Size Bed in a Box for Back Pain Relief and Cool Sleep with Gel Foam and Removeable Fiberglass Free Cover, CertiPUR-US Certified
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Availability:
In Stock.
Arrives
Sunday, Aug 2
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Size: Full
Style: 14 Inch
Pattern Name: Medium
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 full size mattress is free from harmful substances. Backed with a 10-year protection, this 14 inch 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.
Brand: FATHOM
Size: Full
Product Dimensions: 75"L x 54"W x 14"Th
Item Weight: 67 Pounds
Item Firmness Description: Medium
Top Style: Gel Top
Cover Material: Polyester
Number of Layers: 4
Fill Material: Gel Memory Foam, Memory Foam
Weight Limit: 750 Pounds
Item Firmness Description: Medium
Number of Layers: 4
Weight Capacity Maximum: 750 Pounds
Additional Features: Breathable, Durable, Low Motion Transfer, Pressure Relief, Temperature Regulating
Construction Type: Memory Foam
Size: Full
Item Dimensions L x W x Thickness: 75"L x 54"W x 14"Th
Item Weight: 67 Pounds
Item Thickness: 14 Inches
Item Dimensions: 75 x 54 x 14 inches
Item Depth: 14 inches
Cover Material: Polyester
Fill Material: Gel Memory Foam, Memory Foam
Mattress Comfort Layer Material: Comfort Foam
Material Type: Gel Foam, Memory Foam
top-style: Gel Top
Color: Medium
Style Name: 14 Inch
Brand Name: FATHOM
Model Name: Fathom Medium 14" F
Product Benefits: Back Pain Relief, Improves Sleep, Pressure Relief, Reduces Toss & Turn, Stress Relief
Model Number: Medium 14 F
UPC: 840418683965
Mattress Type: Standard Mattress
Manufacturer: FATHOM
Manufacturer Part Number: FA14FMDT
Unit Count: 1.0 Count
Included Components: Memory Foam
Age Range Description: Adult
Item Type Name: Bed Mattress Conventional
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Aug 2
Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: Twin XL
Style: 12 Inch
Pattern Name: Medium
For the price, this 12-inch memory foam mattress is an excellent deal. The quality is impressive for a "bed in a box," and the Twin XL size is perfect for tighter spaces or college dorms. The medium firmness offers a nice balance—it’s supportive enough for back alignment but still has that classic memory foam "hug" for pressure relief. It also stays surprisingly cool throughout the night. If you're looking for a comfortable, budget-friendly upgrade that doesn't feel cheap, this is a solid investment.
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Reviewed in the United States on May 15, 2026 by Michelle
Size: Queen (U.S. Standard)
Style: 12 Inch
Pattern Name: Medium
I was a little nervous since i have never purchased a bed in a box before. The delivery was amazing and it got to my door 4 days soon then I thought. The set up was super easy and quick.the mattress inflated within a few hours. And it looks like a top dollar luxury mattress for less than 1/2 the price. I ordered the medium softness and I couldn’t be more pleased. First night in years I wasn’t tossing and turning. So comfortable I fell asleep with in minutes. The mattress is soft and supportive without sinking in. Very well made. Would recommend to anyone looking for a great night sleep without breaking the bank
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Reviewed in the United States on March 28, 2026 by charlene ailes
Size: Queen (U.S. Standard)
Style: 12 Inch
Pattern Name: Medium
I have bought bed in the box before and it was time for a new bed since its been since 2018. I was looking for one to keep me cooler at night since I do not like to be hot. This one keeps you cool! Its soft, comfy and was so easy to get set up. It was to normal size in about 15mins. I slept very well on it. Very supportive and firm but not to where its stiff. Its like a cloud. I bought the 12in like my last one. Fits in my new bed frame nicely! Highly recommend for people who like to sleep cooler.
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Reviewed in the United States on May 18, 2026 Reviewed in the United States on May 18, 2026 by Sarah LeBaron
Size: Queen (U.S. Standard)
Style: 12 Inch
Pattern Name: Medium
I recently upgraded to a 12-inch queen foam mattress, and it has truly transformed my sleep experience. From the moment I first lay down, I could tell this mattress was something special. What stands out most is the perfect balance of support and comfort. The foam is firm enough to keep my spine aligned — my lower back pain has noticeably improved — yet soft enough to cradle pressure points and relieve tension. I’ve woken up feeling refreshed and pain-free, which hasn’t happened in years with my old mattress. Another highlight is how cool and breathable this mattress sleeps. Even on warm nights, I stay comfortable without overheating. The foam layers are designed to promote airflow, so I never wake up sweaty like I used to with other memory foam beds. Comfort-wise, it’s truly luxurious. It gently contours to your body, giving that “just right” feeling — not too stiff, not too plush. Whether I’m on my back, side, or stomach, it adapts perfectly and feels supportive without being restrictive. In short, if you’re looking for a high-quality queen mattress that’s excellent for back support, incredibly comfortable, and refreshingly cool, this 12-inch foam model is a stellar choice. It’s been one of the best sleep investments I’ve ever made — I wake up happier, healthier, and ready to take on the day!
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Reviewed in the United States on January 5, 2026 by Dayana
Size: Queen (U.S. Standard)
Style: 10 Inch
Pattern Name: Medium
This bed is actually super comfy! It's not as too firm (I dont like firm) and last night I set it up nd it was the first night I slept on it and so far I like it alot! Totally worth the money. Im not sure how long it will last considering its a cheap bed but even if its temporary I'm ok with that!
Reviewed in the United States on March 28, 2026 by paige
Size: King (U.S. Standard)
Style: 12 Inch
Pattern Name: Medium
I initially purchased mattress with similar features from a different company. Inflation was not good! But this Fathom mattress quality is very good and the inflation process was quick. The most important thing is there is no wrinkles or uneven surfaces post inflation. The mattress is medium firm and exactly 12 inches as described. Now it’s been 5 days since I bought the mattress and using it. Feeling comfortable and getting good sleep for my back pain.
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Reviewed in the United States on June 8, 2026 by SaraSam
Size: King (U.S. Standard)
Style: 14 Inch
Pattern Name: Medium
WOW. My back literally thanks me every day for buying this mattress. I’ve had it for about 5 months now (purchased Dec 2025) and it has been one of the best blind buys I’ve made. It’s supportive and firm enough for back support, but still soft and super comfortable. I’ve had spinal surgery, so I’m extremely picky with mattresses because so many leave me waking up sore — this one does the exact opposite. I’m sleeping better and waking up without aches. For reference, I got the King 14-inch Medium. If you’re debating it, I definitely recommend especially for the price.
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Reviewed in the United States on May 11, 2026 by Amber McMillan
Size: King (U.S. Standard)
Style: 10 Inch
Pattern Name: Medium
This mattress exceeded my expectations from the first use. It was very easy to set up and expanded properly in a short time. It is comfortable, firm, and provides good support that helps improve sleep quality. It feels stable during the night, and movement is barely noticeable. Overall, it is an excellent choice for anyone looking for comfort, good support, and a pleasant sleeping experience. Excellent Comfortable Mattress.
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Reviewed in the United States on April 21, 2026 by Himanshu