Search  for anything...
Gelsea

Gelsea 12 Inch King Green Tea Memory Foam Mattress for Cool Sleep & Pressure Relief, Bed in a Box, Removable Cover No Fiberglass, CertiPUR-US Certified

  • Based on 120 reviews
Condition: New
Checking for the best price...
$371.43 Why this price?
Memorial Day Sale · 23% off was $479.99

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

90-day refund / replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, May 25
Order within 17 hours and 48 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Size: King


Style: 12 Inch


Pattern Name: Medium Firm


Features

  • 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.

Brand: Gelsea


Size: King


Product Dimensions: 80"L x 76"W x 12"Th


Item Weight: 72 Pounds


Item Firmness Description: Medium Firm


Top Style: Tight Top


Cover Material: Polyester


Number of Layers: 3


Fill Material: Gel Memory Foam, High Density Foam, Memory Foam


Weight Limit: 750 Pounds


Item Firmness Description: Medium Firm


Number of Layers: 3


Weight Capacity Maximum: 750 Pounds


Additional Features: Breathable, Fire Retardant, Pressure Relief, Stain Resistant, Temperature Regulating


Construction Type: Gel Foam


Is Customizable?: No


Is Foldable: No


Size: King


Item Dimensions L x W x Thickness: 80"L x 76"W x 12"Th


Item Weight: 72 Pounds


Item Thickness: 12 Inches


Item Dimensions: 80 x 76 x 12 inches


Item Depth: 12 inches


Cover Material: Polyester


Fill Material: Gel Memory Foam, High Density Foam, Memory Foam


Product Care Instructions: Do not wash. Do not use bleach. Do not machine dry. Do not iron. Do not dry clean., DO NOT REMOVE OR WASH COVER Spot clean only, vacuum your mattress, sprinkle some baking soda on it. Use a scrub brush to gently rub the powder into the mattress and leave it for 10 minutes and vacuum the excess powder.


Mattress Comfort Layer Material: Memory foam


Material Type: Foam, Gel Foam, Memory Foam, Polyester


Brand Name: Gelsea


Model Name: GS-NBE-12K


Product Benefits: Back Pain Relief, Improves Sleep, Posture Support, Pressure Relief, Reduces Toss & Turn


Model Number: GS-NOBLE-12K


UPC: 810115752967


Mattress Type: Standard Mattress


Manufacturer: Gelsea


Manufacturer Warranty Description: 10 year manufacturer.


Set Name: King


Manufacturer Part Number: MNB10Kmf


Unit Count: 1.0 Count


Included Components: Memory Foam Mattress


Age Range Description: Adult


Item Type Name: Bed Mattress Conventional


top-style: Tight Top


Color: White & Grey


Style Name: 12 Inch


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 25

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • It's worth every penny!
Style: 10 INCH-Noble Size: Full
Review Image by Zy Zy
Review Image by Zy Zy
Purchasing this memory foam mattress was a significant decision for me in improving the quality of my sleep, and it has exceeded my expectations. Its packaging is ingeniously designed, making it effortless to unpack without any struggle. This mattress excels in providing excellent support. Its memory foam layer conforms to the contours of my body, offering exceptional comfort. I used to wake up with back or neck pain, but since using this mattress, that issue has vanished. I wake up feeling refreshed every morning, which brings me immense joy. Its quality is highly reliable, and I believe it will prove to be durable in the long run. If you're searching for a high-quality, comfortable, and supportive mattress, I strongly recommend this Full Mattress – it's worth every penny! ... show more
Reviewed in the United States on January 27, 2024 by Zy Zy
    • Memory foam bed
Style: 12 INCH-Nobel Size: Queen
Very comfortable highly recommended get great rest every night 10/10
Reviewed in the United States on August 29, 2024 by Tee
    • Great mattress
Style: 10 INCH-Noble Size: Queen
I recently moved into a new apartment and the old mattress was already keeping me awake, so I chose this one. This mattress seems to be a new project, so I think its quality must be great, at least it looks exquisite. It turns out that I was right, this mattress is even more high-end than it looks in the picture, the fabric is very textured, and it's very comfortable to lie on, I feel like I'm being lifted up, in the clouds, but I don't sink, it's amazing, I can fall asleep very quickly, which makes me wake up refreshed. ... show more
Reviewed in the United States on November 1, 2023 by AlexZ
    • Works well for an Adjustable Bed
Style: 10 INCH-Noble Size: Twin
We have an adjustable split king bed. I couldn't find mattresses that said adjustable in the description, so after reading the description of this one, noting that it comes rolled up in a box, I figured I would give this a try and my wife LOVES it. Her back was sore from sleeping on her previous mattress, which I now am sleeping on, and I am doing fine on, so I gave this 5*****. Her comment was that it was firm. The description does say it needs 72 hours to fully "inflate" but we found 48 hours was fine. You definitely should let it sit for at least a day before using. If it is still available next year, I think I will buy a new one for my wife and move her old one to my side of the bed. ... show more
Reviewed in the United States on September 21, 2024 by Erroneous
    • 12 inch mattress
Style: 12 INCH-Nobel Size: King
1st the mattress came quicker than expected which was great. I am now on day 4 and this mattress has not expanded to 12 inches, it is extremely hard and very uncomfortable. I bought this to replace a mattress that was making my body sore and keeping me from enjoying my bed. Well this one is extremely worse I slept on it last night for the first time since it is taking forever to expand and my entire body hurts on top of being extremely tired because I wasn't able to comfortably sleep. I am glad that pickup for my previous mattress was delayed because I need to switch back. My old mattress has my body feeling the same way as this new one except it takes days for me to hurt the way I am now after only o e night. Contacted customer service and have to wait up to 2 business days for a response. I don't know how to return it because it can not be put back in its box. ... show more
Reviewed in the United States on March 20, 2024 by Lucretia
    • I was Pleasantly suprised!
Style: 10 INCH-Noble Size: Queen
I was so worried about the bed in a box concept, but I really shouldn't have! This is a comfy bed that is soft yet firm and hugs you in ALL the right places! It took no time at all to receive it through shipping and set up was an absolute breeze. Took less than 20 min to fully spread out.
Reviewed in the United States on May 15, 2024 by bethany
    • Firmer than expected
Style: 12 INCH-Nobel Size: Queen
Been sleeping on this for about a month and it is a firmer mattress than I had expected. Price was good and quality seems good also. For a side sleeper like myself, I would not buy again. For a back sleeper , I think it would be fine. I put a mattress topper on it and it helped, but mattress still not at the comfort level I had expected. ... show more
Reviewed in the United States on January 21, 2024 by Jeff D
    • Good
Style: 12 INCH-Nobel Size: Queen
The top layer has shifted so there’s a dent in the side of the mattress but it’s soft and doesn’t cause me pain.
Reviewed in the United States on July 11, 2024 by Melissa A

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...