Free shipping over $35 · 60-day returns · Price-watch guarantee

Ventari

Gelsea

12 Inch King Green Tea Memory Foam Mattress for Cool Sleep Pressure Relief Bed in a Box Removable

$313.81$359.99

650+ bought in the past month

Sobre este artículo

  • Triple Comfort: The Multiple-layer foam construction is designed for this memory foam king mattress. The green tea gel and airy cooling flex foam and durable support base foam work perfectly to provide ultimate comfort and support to your night sleep.
  • Cool Feeling: The infused green tea gel absorbs moisture and heat, promoting deeper and more restful sleep. The egg crate design excels in great breathability and enhances air circulation for a cooler sleep environment, ideal for hot sleepers.
  • Pain Relief and Body Support: Firm enough to support, soft enough to relax. The snoothing support means fewer nighttime adjustments, keeping both partners undisturbed. The mattress contours to your body, relieving pressure and promoting better sleep.
  • Certified Safe for Healthy Sleep: This 12 inch king mattress ALL uses CertiPUR-US Certified foam without fiber glass, providing a Child-Safe & Chemical-Free sleeping environment especially for the health-conscious sleepers.
  • King Mattress in a Box: No Assembly, No Heavy Lifting. The king size mattress is ‌rolled, compressed‌ and delivered ‌straight to your door‌ in a compact box for shipping. It is also compatible with most bed bases and frames.

Key details

Brand
Gelsea
Item Firmness Description
Medium Firm
Top Style
Tight Top
Number of Layers
3
manufacturer
Gelsea

Dimensions and fit

Size
King

Technical specifications

item_model_number
GS-NOBLE-12K

Item information

best_sellers_rank
#22,906 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #111 in Mattresses
is_discontinued_by_manufacturer
No
date_first_available
September 25, 2023
age_range_description
Adult
Highlights

About this item

  • Triple Comfort: The Multiple-layer foam construction is designed for this memory foam king mattress. The green tea gel and airy cooling flex foam and durable support base foam work perfectly to provide ultimate comfort and support to your night sleep.
  • Cool Feeling: The infused green tea gel absorbs moisture and heat, promoting deeper and more restful sleep. The egg crate design excels in great breathability and enhances air circulation for a cooler sleep environment, ideal for hot sleepers.
  • Pain Relief and Body Support: Firm enough to support, soft enough to relax. The snoothing support means fewer nighttime adjustments, keeping both partners undisturbed. The mattress contours to your body, relieving pressure and promoting better sleep.
  • Certified Safe for Healthy Sleep: This 12 inch king mattress ALL uses CertiPUR-US Certified foam without fiber glass, providing a Child-Safe & Chemical-Free sleeping environment especially for the health-conscious sleepers.
  • King Mattress in a Box: No Assembly, No Heavy Lifting. The king size mattress is ‌rolled, compressed‌ and delivered ‌straight to your door‌ in a compact box for shipping. It is also compatible with most bed bases and frames.
Close-up view of the 12 Inch King Green Tea Memory Foam Mattress for Cool Sleep Pressure Relief Bed in a Box Removable
Details

Materials and maintenance

dimensions
80 x 76 x 12 inches
weight
72 pounds
Product Dimensions
80"L x 76"W x 12"Th
Item Weight
72 Pounds
Cover Material
Polyester
Fill Material
Gel Memory Foam, High Density Foam, Memory Foam
Weight Limit
750 Pounds
product_dimensions
80 x 76 x 12 inches
item_weight
72 pounds

De la marca

Product detailProduct detailProduct detailProduct detailProduct detailProduct detailProduct detailProduct detail
Product detailProduct detailProduct detailProduct detail

Product videos

Product video 1

Customer reviews

485 reviewsPositive

Rated 4.4/5 across 485 reviews — well received overall.

  • 100% of sampled reviews are from verified purchases.
  • 88% of sampled reviews give 4–5 stars.

Customers say

Customers find the mattress has a perfect medium-firm feel and is comfortable, with one noting it's soft enough to melt into after a long day.

Generated from the text of customer reviews

Reviews with images

Customer review image for Very Comfortable and Great Quality for the Price!!Customer review image for High-End Comfort at a Great ValueCustomer review image for High-End Comfort at a Great ValueCustomer review image for Comfortable, Cool, and Easy to Set Up
See all photos
★★★★★

Very Comfortable and Great Quality for the Price!!

I’m extremely happy with this mattress! It arrived quickly and was well packaged. After opening, it expanded perfectly and had very little odor, which disappeared within a few hours. The memory foam is very comfortable—firm enough to give great support, but still soft and cozy. I’ve been sleeping much better since switching to this mattress. It supports my back well and doesn’t sink in too much. It also stays cool throughout the night, which is a big plus. For the price, the quality is excellent and feels just as good as much more expensive mattresses. Highly recommend this mattress to anyone looking for comfort, support, and great value! Read more

Customer review image for Very Comfortable and Great Quality for the Price!!
SunByMarVerified purchase
★★★★★

High-End Comfort at a Great Value

I recently purchased this mattress-in-a-box, and it has exceeded all my expectations for comfort and support. It arrived tightly rolled, making it easy to maneuver into the room, and it fully expanded to its true size within just 24 hours. The firmness level is absolutely perfect - a true medium-firm that cradles your body while providing excellent support for your spine. It feels incredibly comfortable, striking that ideal balance between being soft enough to snuggle into and firm enough to prevent that "stuck" feeling. It is completely true to the product description, offering a high-quality experience without the high-end price tag. I wake up feeling rested, refreshed, and free of aches every morning. I would highly recommend this mattress to anyone looking to upgrade their sleep quality. Read more

Customer review image for High-End Comfort at a Great ValueCustomer review image for High-End Comfort at a Great Value
CKVerified purchase
★★★★★

Absolutely Amazing Mattress!!

OMG!this mattress has exceeded my expectations and beyond! Fast shipping. Packaged nicely. Opened with ease. Did not have any problems removing plastic protection. It at first looks very flat but plumps up to full size of ten inches very fast. No issues with corners. NO ODORS. First night of use I slept like a rock and woke up without any back or neck pain!! I felt refreshed and amazed! This is the first mattress among six others I have purchased and tried that took my back, hip and neck pain away. It is a medium firm but feels like a cloud. Do not hesitate to purchase it. This mattress competed with well known brands and has won hands down. Great value. Great construction and amazing comfort!! I will be replacing all bedrooms with this mattress. Fabric is soft and will be easy to clean. True to size with good edge support. All around 5+ stars!!! Read more

MaryVerified purchase
★★★★★

I’ve been very impressed with this 10-inch memory foam mattress since the first night

I’ve been very impressed with this 10-inch memory foam mattress since the first night. It expanded quickly after opening and was ready to use the same day, with little to no odor, which was a big plus. The gel-infused foam does a great job of regulating temperature, keeping the mattress comfortable throughout the night instead of trapping heat. The feel strikes a nice balance—not too firm, not too soft—and provides excellent pressure relief. It contours well to the body and minimizes movement, so sleep isn’t disturbed when someone else shifts around. I’ve noticed a big improvement in overall comfort and wake up feeling more rested, without the usual aches. It also fits standard sheets perfectly, which made setup even easier. For the quality and comfort it offers, this mattress is a great value and has exceeded my expectations. Read more

AlejandroVerified purchase
★★★★

Great quality for price

Comfy and is exactly as pictured. Only knocked off one star because it’s not as soft as I would like it to be but for the price it’s a great bed! Read more

Laura FraserVerified purchase
★★★★★

Read before to buy

Getting a good night's sleep is not a luxury, it's a biological necessity. After testing various brands of "box mattress," Gelsea's 12-inch model with Green Tea infusion stands out for a specific reason: the balance between orthopedic support and thermal freshness. In climates like Los Angeles, a cheap foam mattress usually traps heat; Gelsea has solved this with its open cell structure. 📊 Critical specifications 12-inch thickness: Three layers of progressive density that remove pressure points on shoulders and hips. Green Tea Infusion: Acts as a natural odor neutralizing agent, keeping the mattress cool for years. CertiPUR-US Certificate: Zero harmful emissions, safe for families and children. Motion Isolation: If your partner moves, you don't feel anything. It's the litmus test of a high-end King Size. 💡 Single Expert Recommendation Ignore the 24-hour rule. Although the manufacturer says you can use it soon, to ensure the integrity of the 12 inches, you should let it expand for a minimum of 72 hours without weight on top and with an open window. This allows the foam molecules to regain their full structural memory and the residual aroma of compression to disappear completely. ⚠️ Risks detected Medium-High Firmness: If you're looking for a mattress where you sink like a cotton cloud, this one isn't for you. It's designed for those who need real support in the column. Package Weight: In King size, the box is extremely heavy. Don't try to move it alone; you risk a lumbar injury before you release it. Soft Edges: Being 100% foamy (without springs on the perimeter), sitting right on the edge offers less resistance than a traditional mattress. Great quality. Awesome value for money. Read more

Daniel DelevinVerified purchase
★★★★★

Comfortable, Cool, and Easy to Set Up

This queen memory foam mattress arrived neatly compressed in a compact box, which made it very easy to move into the bedroom and unbox. It expanded quickly and was ready to use without any hassle. The medium-firm feel provides great support while still being comfortable, feels sturdy and well-made. Overall, a great value mattress with a simple setup and restful sleep experience. Read more

Customer review image for Comfortable, Cool, and Easy to Set Up
AlekseyVerified purchase
★★★★★

Comfortable, Cool, and Supportive. Great Value Mattress

This queen memory foam mattress exceeded my expectations. The medium-firm feel offers excellent support while still being comfortable, and the green tea gel infusion genuinely helps with cooling through the night. It arrived neatly boxed, expanded quickly, and had minimal odor. I’ve noticed great pressure relief for my back and shoulders, and sleep quality has improved noticeably. Knowing the foam is made in the USA and CertiPUR-US certified makes it an even better buy. Read more

kiranVerified purchase
Recently Viewed

We use optional analytics cookies to understand how visitors use Ventari and improve the experience. This banner controls analytics measurement only. See our Cookie Policy.