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LUCID

Lucid® 10" Medium Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US® Certified – King Size

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Sep 6
Order within 13 hours and 51 minutes
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Size: King


Style: 10"


Pattern Name: Medium


Features

  • Memory Foam
  • COOLING GEL INFUSION: This cooling gel memory foam mattress sleeps cooler; gel infused into the comfort layer draws heat away from your body, while bamboo charcoal absorbs moisture and helps regulate temperature throughout the night
  • MEDIUM FEEL: A medium feel memory foam mattress that balances contouring comfort with steady support; 3 inches of gel foam cushions pressure points while the high-density base keeps your spine in line. Compatible with adjustable bases
  • DESIGNED FOR COMFORT: Three layers of memory foam mattress construction work together all night: 3 inches of gel foam, a 1.5-inch transition layer, and a 5.5-inch high-density base; the right balance of comfort and spinal alignment
  • SAFELY MADE IN THE USA: Mattress made in the U.S with global and U.S. parts, including CertiPUR-US certified foam independently tested for content, emissions, and durability; backed by a 10-year limited warranty
  • BED IN A BOX: This memory foam mattress in a box ships compressed for easy delivery; works on adjustable bases, platform frames, and slatted frames right out of the box; no box spring needed

Description

A mattress upgrade shouldn't require a second job. The Lucid® 10-Inch Gel Memory Foam Mattress is available in Plush, Medium, or Firm to match exactly how you like to sleep. The Plush version gives you a deep, sink-in feel that wraps around your body and relieves pressure points, ideal for side sleepers and anyone who loves a soft plush mattress. The Medium feel memory foam mattress hits the sweet spot between contouring comfort and support, making it a go-to for back sleepers, combination sleepers, and guest rooms that need to please everyone. The Firm memory foam mattress keeps you riding on top with structured, edge-to-edge support, the right call for stomach sleepers and those who've always found plush beds too soft. This mattress is safely made in the USA with global and U.S. parts, including CertiPUR-US certified foam independently tested for content, emissions, and durability. It's designed with you and your family in mind, this mattress is fiberglass free and has safely passed all flammability testing in U.S. laboratories. This memory foam mattress is backed by a 10-year limited warranty. A convenient mattress in a box ships easily and works with any flat surface, no box spring needed. Available in Twin, Twin XL, Full, Queen, King, and California King.

Brand: LUCID


Size: King


Product Dimensions: 78.9"L x 37.4"W x 15.5"Th


Item Weight: 70.4 pounds


Item Firmness Description: Medium


Top Style: Smooth Top


Cover Material: Polyester Blend


Number of Layers: 3


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


Special Feature: Bamboo Charcoal, Bed in a Box, CertiPUR-US Certified, Cooling Gel Infusion, Fiberglass Free


Item Firmness Description: Medium


Number of Layers: 3


Additional Features: Bamboo Charcoal, Bed in a Box, CertiPUR-US Certified, Cooling Gel Infusion, Fiberglass Free


Mattress Coil Type: Encased Coil


Construction Type: Memory Foam


Mattress Base Compatibility: Slatted Base


Size: King


Item Dimensions L x W x Thickness: 78.9"L x 37.4"W x 15.5"Th


Item Weight: 70.4 pounds


Item Thickness: 10 inches


Item Depth: 10 inches


Item Dimensions: 78.9 x 37.4 x 15.5 inches


Cover Material: Polyester Blend


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


Product Care Instructions: 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 or so and vacuum the excess powder., Do not wash. Do not use bleach. Do not machine dry. Do not iron. Do not dry clean.


Mattress Comfort Layer Material: Gel Memory Foam


Material Type: Gel Foam, Memory Foam


top-style: Smooth Top


Color: White


Shape: Rectangular


Style Name: 10"


Brand Name: LUCID


Model Name: Lucid 10 Inch Memory Foam Medium-Plush


Product Benefits: Edge Support, Motion Isolation, Pressure Relief, Spinal Alignment, Temperature Regulation


Model Number: LU10KKMD30GF


UPC: 840008333027


Number of Items: 1


Mattress Type: Standard Mattress


Number of Packs: 1


Manufacturer: LUCID


Manufacturer Warranty Description: 10 year warranty.


Unit Count: 1 Count


Age Range Description: Adult, Teen


Included Components: Compressed Mattress


Item Type Name: Bed Mattress Conventional


Manufacturer Part Number: LU10KKMD30GF


Set Name: King 10"


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 6

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.

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Top Amazon Reviews

    • Very comfortable
Size: Full Style: 10" Pattern Name: Medium
I’m absolutely loving this mattress! I have a Tempur-Pedic mattress in my bedroom that I purchased directly from the company, and I can honestly say this mattress is every bit as comfortable. It offers excellent support with just the right level of firmness. Not only is it incredibly comfortable, but it’s also much more budget-friendly. I couldn’t be happier with my purchase and would definitely recommend it to anyone looking for great quality at a reasonable price. ... show more
Reviewed in the United States on July 6, 2026 by Rubi Q
    • You would like it
Size: Queen Style: 10" Pattern Name: Medium
It's very comfortable. It feels durable. The size is good. Taller than the one I had before. Good price. I don't know about cooling. I sweat a lot. It's probably me.
Reviewed in the United States on July 31, 2026 by Cat
    • Pleasantly Surprised!
Size: Queen Style: 10" Pattern Name: Medium
It turned out much better than I expected. I got it in medium, and it lets you kind of sink in a little bit and feels good. Perfect size, doesn't smell weird and was a great price! For 277$, it was hard to beat.
Reviewed in the United States on July 7, 2026 by Kenny
    • It’s almost perfect
Size: Queen Style: 10" Pattern Name: Medium
I had purchased the plush Lucid mattress for my other house & that one was PERFECT. Needed another mattress & for some reason could not ship the plush to Hawaii. But the medium mattress could be shipped, so I went with that. If you are reading this then you know mattresses are a very personal choice. How can a mattress feel like sleeping in a cloud & also feel like sleeping on a slab of concrete? Is there truly that much difference in 2 people’s experience? Or is it quality control of the memory foam? At any rate, I had a good experience with Lucid once. And had a bad experience with a different brand where the new mattress had zero support & gave me back pain like I’ve never experienced before. It also was so hot! And if you get the mattress & don’t like it, good luck getting it back into the box & returning it! I ended up selling it to some poor soul that didn’t know what a torture thing the mattress was. But hey, there were a gazillion 5 star reviews on that brand. Maybe the buyer got an almost brand new “like sleeping on a cloud in an inferno” for a fraction of the price! Anyways, back to this medium support Lucid. It’s OK. I wake up with ZERO back pain & does not retain heat, so maybe it does deserve a 5 star instead of 4 star. But, I just wish it had a tad bit more softness. Like maybe one or two more inches of soft memory foam. I’ve had it for a couple months. I am hoping as it breaks in it will soften up a bit. This mattress is probably good for people larger than I. And I sleep alone with a couple little furry friends. I tried putting a 3” memory foam mattress topper on it but it was too much, a little too soft. Maybe a 1” or 2” topper will work. Don’t get me wrong, I really do like this mattress. No back pain is worth a lot!!! This mattress is almost perfect! I would have traded the plush for this medium, but he let the old dog sleep on it with no waterproof protection & guess what? He can keep it! Also, the softer they are the faster they degrade. That plush mattress… the person sleeping on it is about 30-40lbs heavier than me. He’s been sleeping on it for 5 years & its has an indentation where he sleeps. But he has not complained about that. He does complain about the fact that there’s no support at the edges when you sit. That is true for any memory foam mattress. He ended up putting padded side boards on his bed frame to give it support (my bed frame already has side boards, which is perfect for memory foam!) I really wish I could have ordered the plush Lucid, even if I would have to replace it in 5 years. For the price, to me, it’s worth it. That plush mattress was perfect, this medium is almost perfect & since it is firmer, hopefully it will last a little longer. Good luck with the search for the perfect mattress! If you can afford to pay a little more, buy one at Costco or somewhere that you can return it if it doesn’t work for you. Or go to a mattress store & take a lie down on different brands. Or lie down on a friend’s memory foam & see how it feels. There’s just no way to know, since every mattress on Amazon has contradictory reviews. I do believe that if you are not sure, go with the firmer one. If it’s too firm, you can always put a topper on it. But if it’s too soft & causes crippling pain & makes you feel like you are sleeping in an inferno of heat, you are pretty much screwed. I do recommend this medium Lucid mattress. It is a good mattress at an affordable price. ... show more
Reviewed in the United States on January 2, 2022 by Kau Lehua
    • Great upgrade to any camper
Size: Short Queen Style: 10" Pattern Name: Medium
Such a comfortable mattress! The first thing we wanted to upgrade with our new camper was the mattress. The Lucid mattress was the perfect fit for us and so comfortable. We added a mattress cover and it’s more comfortable than our bed at home. Would highly recommend!
Reviewed in the United States on July 31, 2026 by Amazon Customer
    • Perfect softness and stiffness
Size: Short Queen Style: 10" Pattern Name: Medium
Very nice comfortable just the right amount of softness and stiffness
Reviewed in the United States on July 28, 2026 by Johnson's
    • So Glad we Bought ours for RV...
Size: Short Queen Style: 10" Pattern Name: Medium
OMGOSH this mattress is perfect for our RV. I slept like a baby and I have hip problems but this bed didn't stop me from sleeping. Definitely recommend buying one, especially if looking for a new RV mattress, we bought the 10 inch one.
Reviewed in the United States on August 8, 2026 by J. Roberts
    • It was great!
Size: Full Style: 10" Pattern Name: Medium
Everything I get from Amazon has been delivered and was great!!!!
Reviewed in the United States on August 26, 2026 by Tammy L.

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