Search  for anything...
Molblly

Molblly King Memory Foam Mattress in a Box, Fiberglass Free,Breathable Comfortable Mattress for Cooler Sleep Supportive & Pressure Relief, King Size Bed, 76" X 80" X 12", 12 Inch

    • Based on 24,880 reviews
Condition: New
Checking for product changes

Notify me when this product is back in stock

$349.98 Why this price?
Save $55.02 was $405.00

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – No impact on credit
  • – 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, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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

This item is eligible for return within 30 days of receipt

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: Unavailable
Fulfilled by Molblly Sleep
Available payment plans shown during checkout

Style: 12 Inch


Size: King


Size: King


Special Feature: Hypoallergenic, Pressure Relief, Breathable, Low Motion Transfer


Fill Material: Gel Memory Foam, Memory Foam


Brand: Molblly


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


Color: 12" Grey


Coil Type: Continuous Coil


Product Care Instructions: Hand Wash Only


Cover Material: Jacquard


Comfort Layer Material: Memory foam


Product Dimensions: 76 x 80 x 12 inches


Item Weight: 81.5 pounds


Manufacturer: Molblly


Country of Origin: Indonesia


Date First Available: October 19, 2018


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 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

    • Worth every penny
We wanted to upgrade from a queen to a California king. I was nervous about buying a cheaper mattress off Amazon and I was scared about cheaper ones that contain fiberglass. I picked this one because there’s a reviewer who opened it up and confirmed no fiberglass. This was the best price and the highest ratings. Still coming from a tuft to needle mattress I was nervous… The mattress came quickly and we laid it out flat on the ground and let it air out for 48hrs. We did open a window for most of the time so I didn’t notice too much of a smell. It puffed up instantly and I really had to restrain myself from pressing on it or laying on it. After 48hrs everything reached the full size there was one corner that was just ever so slightly deformed but after rubbing it and a week of sleeping on it the entire bed decompressed. Initially when I first layed on it the bed was very firm and I felt like I was going to have to get a topper. The first night I slept so well and we were so relived that we didn’t pay an arm and leg for a California king. After a week I feel like I sleep better at night and I wake up with less pain though still firm it contours perfectly to our bodies and it’s so comfortable. I really am so glad we got this bed and I think it’s high quality considering I’m sleeping better on this than my $1000 tuft to needle bed. BUY IT!!! ... show more
Reviewed in the United States on November 25, 2023 by Brielle Ann Mckeever
    • Good value
Review Image by JennMom JennMom
I bought the Full/Double 12" memory foam cool sleep matress for our guest room to place on a metal bed. Unboxing: item arrived in a box weighing 55 pounds. My husband brought it upstairs by himself. The box was a manageable size for 1 person. The mattress was folded in half, head to toe, then rolled up tight and shrink wrapped. There was an envelope opener tool taped to the side. I highly recommend using this tool over scissors or other sharp objects so you don't accidentally cut into the mattress cover. You only need to carefully slice through one layer of plastic, then you just unroll the remaining layers. The mattress cover was nice and clean. No odors or off-gassing smells detected (and I have a sensitive nose). Set up: Admittedly the matress looks pretty sad and flat immediately upon unwrapping. DON'T BE ALARMED! It will expand. At this point, make sure the matress is on a flat surface where it can expand freely without any pressure or pinch points. We unwrapped ours around 7pm. Within 3-4 hours, the mattress had risen to 10." By morning, it was at the full 12." The corners were nice and square. We then positioned it into place on the bed frame and made the bed. The bed frame we used is a metal frame with round metal pole type "slats" for a base. The metal head and footboards kept the mattress from shifting around. It's a nice and snug fit. No gaps. Comfort: When I assembled the bed frame, I was a little concerned I might be able to feel the round metal slats through the matress. I've never had a foam mattress before. I'm happy to report that was not an issue. Can't feel them at all. If you're worried at all about the mattress being folded head to toe for shipping, don't be. It lays completely flat and I can't even tell it was ever folded now that it rebounded/expanded. I would describe the mattress as medium firm. At first it feels firm, then the matress gives way to your body's pressure points and it feels just right, neither firm nor plush. With memory foam, there's no bounce like spring mattresses can have, which also means there's no movement when your partner moves. With 2 people, we did not experience any rolling toward the center. I've also laid near the edge and had no problems with edge collapse. I'm super pleased with this purchase so far. Too soon to tell yet how it will hold up longterm, but since this is for a guest room, and based on my initial impression of the product, I'm not worried. Only bummer was 3 days after delivery, the price dropped 29%, which would've made this an absolute steal of a deal. Even the regular price is a bargain. I would not hesitate to buy again. EDITED TO ADD: We bought a 2nd mattress. Our teen wanted to upgrade from a twin to a double, so we bought another. She loves it. Quality is consistent. ... show more
Reviewed in the United States on November 11, 2023 by JennMom JennMom
    • Good and Firm
So my dog peed on my bed because my husband didn't want to take her out...my old bed was an 8" medium from Amazon bought about 3 years ago. It has needed replacing and i spend a few hours reading reviews and investigating my options. I knew i wanted a more firm mattress due to my previous experience and that the toppers usually break in reducing the level of firmness. I slept my first night on the bed last night. It is probably the most firm bed I have ever had. Its not bad but I am aware I am getting used to it. I could sleep on my stomach and not have my lower back hurt which has been a problem with medium to soft beds. My shoulders were not crammed up to my ears; again a problem with softer beds and I didn't wake up with shoulder pain or numb arms which has been an issue since old bed has been needing replaced. I did notice there is some give in the topper/memory foam but definitely not as much as my other bed. I can lay there move my leg and feel an impression which also expands back within seconds. My only issue is my lower back was hurting very minorly after my sleep BUT i have been go go go with chores and lifting and moving and my back also hurt worse in my old bed. I do know my body will need to adjust to the new level of firmness so I am not going ot say my back pain is due to the bed. I will have to wait a few weeks and see. Overall, I love the bed so much more than my other one and am already happy about the changes I see I do hope once I let my body rest and adjust to the bed my back will be fine. Otherwise that is my only concern and I wish i had bought a replacement bed much sooner. 1 Week in and I notice my body has adjusted. I feel like i sleep deeper, my husband doesn't wake me flopping around like a fish in his sleep. I don't wake up with any pain. I do notice the bed is cooler and I find myself actually getting cold so I don't have to have the AC on anymore. It is still weird to initially lay down as I am still surprised by firmness but I have zero issues and will be curious how it breaks in in the next few months. ... show more
Reviewed in the United States on April 10, 2023 by E

Can't find a product?

Find it on Amazon first, then paste the link below.