







🛌 Elevate your sleep game with plush, cool comfort that’s impossible to ignore!
The LUCID 4 Inch Gel Memory Foam Mattress Topper combines thick, ultra-plush gel-infused memory foam with a ventilated design to deliver superior pressure relief and breathability. CertiPUR-US certified for safety and quality, it ships compressed for easy setup and includes a 3-year warranty, making it a smart upgrade for any king-size mattress seeking enhanced comfort and cooling performance.






| ASIN | B01N1NV1HZ |
| Batteries required | No |
| Best Sellers Rank | #94,825 in Home ( See Top 100 in Home ) #101 in Fiber Beds |
| Care instructions | We recommend placing a mattress protector on this pad to eliminate the need for cleaning. However, it is best to clean stains with mild detergent and air dry if necessary. |
| Customer Reviews | 4.2 4.2 out of 5 stars (31,049) |
| Date First Available | 1 March 2017 |
| Fabric Type | Memory Foam |
| Fill material | foam, gel, memory foam |
| Included components | Mattress Topper |
| Is assembly required | No |
| Item Weight | 27 Pounds |
| Item model number | LU40KK30GT |
| Product Dimensions | 200.66 x 190.5 x 10.16 cm; 12.25 kg |
| Specification met | certified frustration-free |
N**A
Good one
It’s comfy and does the job
E**S
Great deal. Would buy again.
Great deal. Would buy again.
R**.
Very Comfirtable
Very comfortable
S**3
Very good for back sleeper
If you sleep on you back this is great memory foam👍🏽 but if you sleep on your stomach, you will wake up with the worst back pain you’ve ever had
M**H
It can increase the softness of your mattress
It does increase the quality of your sleep. I have been using it for a week now and gives a good feeling. However, Lucid could provide a sheet to cover the topper that will make it more safe. As chances are it will start coording after few months.
A**R
Let me start off by saying this isn't a paid review. Memory foam's quality isn't just reliant on density. The measure of density of memory foam gives it a Ultra Plush/Plush/Medium Plush/Medium/Medium Firm/Firm/Extra Firm feel. In order for memory foam to BE plush, it has to be low density. The reason Tempur-Pedic doesn't offer low density memory foam (Tempur-ES 4.1 LB Foam & Original Tempur 5.3 LB Foam) is because they distinguish themselves that way. I've used Tempur-Topper Supreme (3" Tempur Original 5.3LB Memory Foam), and it's super high quality, but that Topper is meant for people who like firm mattresses, and I can say the same thing about the 3" Tempur-ES Memory Foam. I've flipped between this memory foam topper, and a Tempur-ES topper. The Tempur-ES is nice, and you can move around easier, but I never feel like I'm being cushioned and like I'm relaxed. You sink in to the Lucid 4" topper, and my body physically relaxes, and I feel cushioned. I wouldn't even go as far to say the Lucid 4" topper is plush, but in order to be a comfortable foam, you will have to sink in quite a bit, or else you're just laying on expensive concrete. Memory Foam is meant to be inexpensive - Memory Foam is cheap to make as they're basically just made of fossil fuels. Don't judge this topper by the price. I first tried a 3" Memory Foam Topper here on Amazon, since the topper had like a 4.9/5 on 100+ reviews, but I don't think that topper was memory foam, and was just basic polyurethane foam. The memory foam had no squishy feeling, and the imprint recovery was almost instant. The Lucid 4" Topper has a fairly slow recovery from imprint time given the Lucid Memory Foam's density. My parents back pains got better when I got them the 4" Lucid Topper. If you're a normal person, and you keep an open mind, then this Lucid 4" Memory Foam Topper is the best thing to make you sleep extra deeper, and sleep longer period or times. I went back to the Tempur-ES topper for 3 months, and that was the dumbest decision I've made in the past few years. My body oozes with relaxation and comfort on the Lucid 4" Topper now, of which never has happened w/ my Tempur-ES topper. Once you get the 4" Lucid Topper, be prepared to be hard to move around if you want to flip over in the middle of the night, but I flip positions 60-70% less w/ the Lucid Topper compared to the Tempurpedic-ES memory foam topper. I use the Lucid King Pillow hybrid as a pillow, the Lucid body pillow I hold on to w/ my arms when I lay on my side, and the basic Lucid memory foam pillow for in between my legs. The side sleep system I use is the best way to sleep. I do hear the Serta Perfect Sleep Luminous Plush Pillow Top is nice, but I can't imagine anything being more comfortable than the Lucid 4" Topper. Enjoy! -Andy R.
J**N
Recommended
D**0
Size & Weight I purchased the 4 inch Lucid topper for my 14 inch King Size mattress. It fits well to all 4 corners. The topper is kind of heavy but not impossible to move. According to the box, it weighs 26.85lbs. It will feel heavier because the object is large and the weight is spread over several square inches. To move it, Grip the topper firmly, but with care and you shouldn't get tears or any other issues. Authenticity First, be sure you are buying an Authentic Product from LUCID. It should come in a box marked with the company's name on it, see the images. Likely, some reviews could be showing a blue topper that looks similar to the Lucid Product but it may be a knock off. I've seen some that are light blue like Lucid's, but it isn't the same. It has a knock off name. According to the box, mine was manufactured in Vietnam and came with a booklet and a free mail/envelope opener. ( Should you buy, yours may be manufactured else where ) Packaging & Expansion. The images you see were taken 1 minute after I opening the vacuum bag. I should have taken an image of it in the bag. It was vacuumed down to about 1 inch of uniform thickness. The topper expanded rapidly after opening and it took about 1 minute to fully expand. Again this is a genuine Lucid product. I see of some reporting it taking days or several hours to expand and even having to place it in a higher temp environment for this to occur. My A/C was set at 72dgs and the room temp was the same. Still, it expanded in 1 minute, which is nearly instant. Smell The topper does have a light smell similar to new carpet but it isnt over powering and honestly, after about an hour or so after opening it, I could no longer detect the smell. Feel I chose the 4 inch because I like that " sink in your bed" feel, which can be great for reducing back and neck pain. The 4 inch is super plush. Because the 4 inch is the thickest and softest, you will sink the most. Some will like this and some won't. Some will mention they don't like crawling out of a hole in the bed...honestly I wouldn't want that either so for the best results, I added a plush pillow top sheet cover to mine. This keeps the soft sink feel but allows you to have no trouble getting out of the bed and I couldnt ask for a better combo. IT MADE MY CHEAP 14inch WALMART MATTRESS FEEL LIKE THE SIMMONS BEAUTY REST HOSPITALITY BEDS IN PREMIUM HOTELS! Both of these are breathable and cool so no night sweats! ( this may vary as no two people are the same ) Also if you sleep with a partner, movement on one side of the bed with this topper won't disturb! Final Recommendations I do not recommend buying this topper for completely worn out matresses, or Stomach sleepers unless you have full size body pillows. But if you sleep on your back or sides and you don't want any back pain and you love the sink in feel, then this is your topper. Also be sure to identify your comfort needs BEFORE you buy.
U**I
Wonderfull Product, I was afraid of heat, but it is not like that. . Once you fall into this , you wont feel of getting up !! Nice sleep for sure !! But Suitable for AIRCONDITIONed ROOM. . .Worth for Money. .
S**A
Recently recovering from surgery where I mainly was on bed rest. After laying on my back for so long my regular mattress wasn’t comforting enough. THIS TOPPER SAVED ME. This relieves pressure on my lower spine and makes sleeping so much better. Basically like sleeping on a cloud
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