LUCID

Lucid 4 Inch Memory Foam Mattress Topper King Size Cooling Gel Bed Topper Preassure-Relieving Ultra Plush Feel Ventilated

826+ bought in the past month

$149.99$170.90

About this item

  • Memory Foam
  • ULTRA PLUSH FEEL – Lucid memory foam mattress toppers are designed to enhance a mattress, making your sleep experience softer; four inches of plush memory foam feels light, airy, and responsive
  • COOLER SLEEP: Cooling gel is infused in the memory foam to help regulate your sleep temperature and keep you comfortable all night long; precision-cut ventilation channels help increase airflow to keep you cooler
  • CHOOSE YOUR SIZE: 2-inch profile adds a soft layer of support to any mattress; 3-inch profile is very plush and adds even more comfort; 4-inch profile has an extra deep, plush, sink-in feel
  • 3-YEAR WARRANTY: This mattress topper is assembled with CertiPUR-US certified foam and backed by a 3-year limited warranty; use with a waterproof mattress protector for best results
  • SHIPS IN A BOX: Mattress topper is compressed and shipped in a box for ultimate convenience; when it arrives, simply unroll it and allow 24-48 hours to fully decompress
$149.99
Was $170.90Save $20.91

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Product details

BrandLUCID
ColorBlue
SizeKing
Fabric TypeMemory Foam
Special FeatureGel Memory Foam

Technical specifications

brandLUCID
colorBlue
sizeKing
fabric_typeMemory Foam
special_featureGel Memory Foam
closure_typePull On
product_care_instructionsHand Wash Only
water_resistance_levelNot Water Resistant
age_range_descriptionAdult
materialMemory Foam
model_nameLUCID 4 Inch Gel Memory Foam Mattress Topper-Ventilated Design-Ultra Plush-King
number_of_items1
manufacturerLUCID
upc848971052044
item_firmness_descriptionExtra Plush
global_trade_identification_number00848971052044
product_dimensions79 x 75 x 4 inches
item_weight27 pounds
item_model_numberLU40KK30GT
best_sellers_rank#61,927 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #151 in Mattresses Toppers
is_discontinued_by_manufacturerNo
refillfoam, gel, memory foam
water_resistantnot_water_resistant
specificationscertified frustration-free
assembly_requiredNo
warranty_description3-year warranty against manufacturer's defects.
batteries_requiredNo
included_componentsMattress Topper

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Customer reviews

3.86,384 ratings

Customers say

Customers find the mattress topper comfortable, describing it as like sleeping on a cloud, and appreciate its quality as the best topper they've used.

★★★★★

OUTSTANDING CUSTOMER SERVICE AND PRODUCTS!!!

Burtice WoodAugust 11, 2025✓ Verified purchase

Absolutely totally impressed by Lucid’s customer service team!! Over the last 10 years or so, I have purchased 3, 4” toppers for my bed and 2 or 3 other mattress toppers (3” I believe)for other family members beds in my home. We have good mattresses, but the best way I have found to make them last COMFORTABLY longer is to put a memory foam mattress topper on them - As well as the fact that there is nothing better for a GREAT NIGHTS SLEEP than crawling and then up into a soft, comfy “feeling like you are sleeping on 12” of goose down comforters “ bed. Lucids’s 4” memory foam mattress does just that- makes your bed feel soft and warm and comfy a just as if you were sleeping on 12” of Goose down comforters! (Saying it’s like sleeping on a soft billowy cloud would be inaccurate- you’d fall through a soft billowy cloud & hit the ground like a brick. THAT doesn’t sound comfortable in the least!! 😂😂) So, if you like sleeping on a soft bed, the 4” is perfect!! So why is Lucid’s customer service so amazing? Well, just like every single other product in the world, occasionally one of those products will be defective or something just not right with it. It happens. No matter how great & amazing a company is, it’s pure naivety to believe that they will never ever have some sort of problem with one of the hundreds of thousands of individual products they sell. I don’t mean that every single one of a product they sell will have a problem, I am saying that 1 of the hundred thousands of one specific item will come off the factory floor as defective. In the situation I am referring to, that one item out of hundreds of thousands, happened to be the most recent of 3 of the 4” toppers I have purchased from Lucid. Building a great reputation for selling great products in various shapes and sizes is one thing. How your customer service department handles a situation when a customer contacts them saying that they are having problems with one of their products because that item is defective - THAT is how a company KEEPS their well earned great reputation. In full disclosure, I did have to contact them twice, but I honestly think that the first time I either put in the wrong reply email or the message portal on their website was not working properly- which honestly, with 99% of message portals and there being people writing about various things- compliments, curiosity and complaints as well as on occasion (yes it happens) competitors spamming message portals in an attempt to bog down customer service in order to make the department look ineffective, I personally think it’s better to just use the company’s customer service/information email, making sure that you write a brief description of your reason for contacting them IN ALL CAPS SO THAT THEY SEE IT PLAIN AS DAY! (Just a little advice from someone who has purchased far too many products online lol I am getting better at not doing that 😂😂 Anyways, customer service was amazing and went above and beyond. I emailed them explaining the problem, they wrote back requesting a couple pictures so they could see what I was explaining and to pass on those pictures to product quality control and then a reply stating that they had shipped me a replacement at zero cost to me. All within 3 days! Honestly, if I had sent pictures with my first email , it most likely would’ve been taken care of in one day, so the extra two days are on me! Thank you Lucid!! You have gained a loyal customer 😊 Read more

★★★★★

My favorite thing ever!!!

Taylor Marie KirkmanSeptember 4, 2025✓ Verified purchase

I cannot say enough good things about this mattress topper — it completely transformed my bed. The 4-inch gel memory foam is ultra plush and makes my mattress feel like a luxury hotel bed. I sleep so much better now, and I wake up without the aches and stiffness I used to have. The ventilated design really helps keep it cool throughout the night, which is a huge plus since I’m usually a warm sleeper. It also expanded quickly right out of the packaging and didn’t have much of an odor, which I was worried about at first. If you’re on the fence, just do it! This is hands down my favorite purchase for my bedroom. It’s cozy, supportive, and worth every penny. Read more

★☆☆☆☆

Not for Me!

N Shua X VajmimAugust 30, 2020✓ Verified purchase

I guess if you are completely the same weight from your head down to your feet and have no back problems and you sleep on your back, this would be the mattress for you. I just purchased this mattress at the beginning of this month bc I thought I would help with my chronic back pain. I was wrong. It really feels great, if you use your hand to press down on it but it actually doesn't feel so great,once your whole body is laying on it. You actually sink into the mattress. So like my husband said to me, it then feels like anything below your waist is higher than everything on top so he tried to pile up pillows to make his head higher but that was uncomfortable. I am a stomach sleeper and he sleeps on his side but if you actually just lay on your back and prop up your head high enough on the pillows, it actually feels comfortable for a bit, until it starts to feel sore. So I thought maybe I was sleeping on the wrong side of the foam mattress since it doesnt really come with instructions on which side is up. I took it off to flip it and realized there was already a small tear at the end of the corner. The other side, I don't sink in as much but then it is very uncomfortable and I find myself unable to fall asleep and toss and turn a lot! And it is worse for stomach sleepers. I have forced myself to be a back and side sleeper now for a week and I have to go back. I've already given it a chance and tried both sides of the lawn and neither of them is green for me so I am returning it. Read more

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