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LUCID

LUCID 5 Inch Gel Memory Foam Mattress, Firm, Fiberglass Free, Twin Size

  • Based on 16,619 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Oct 25 – Oct 31
Order within 9 hours and 24 minutes
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Size: Twin


Style: 5"


Pattern Name: Firm


Features

  • RELIABLE AND QUALITY COMFORT: independently certified to meet rigorous quality standards, this mattress has a 10-year limited warranty and can be relied on to provide comfort for all your loved ones through every stage of life
  • BAMBOO CHARCOAL AND GEL INFUSIONS: This comfortable memory foam mattress is infused with cooling gel to help you sleep cooler and bamboo charcoal to help absorb odors to keep your bed fresh all day every day
  • FIRM FEEL: This Lucid mattress includes 1 inch of ventilated memory foam infused with gel and bamboo charcoal and 4 inches of supportive base foam for a firm feel ideal for stomach and back sleepers and perfect for teens
  • LOW PROFILE DESIGN: This all-foam mattress has layers that contour to your shape and help align the spine for pressure relieving comfort with a versatile height that fits well in RVs, trundle beds, or bunk beds, and works with most any bed frame
  • SHIPS IN A BOX AND ARRIVES COMPRESSED: Your memory foam mattress is compressed, rolled, and shipped in a box right to your doorstep; mattress will expand more quickly in a warm room, but please allow 24-48 hours for mattress for full expansion

Description

A mattress upgrade shouldn't require a second job. The Lucid 5-Inch Gel Memory Foam Mattress is purpose-built for spaces where you need a low-profile, no- nonsense sleep surface. It comes in one feel—firm—and that's intentional. This is the pick for stomach sleepers who need their hips to stay level, teens who need a safe and supportive surface, and compact sleep spaces like bunk beds, trundle frames, and RVs where every inch of clearance counts. One inch of cooling gel memory foam on top takes the edge off and helps regulate sleep temperature, while the dense base foam underneath keeps everything stable and supportive from edge to edge. This mattress is safely made in the USA with global and U.S. Parts, including foam independently tested for content, emissions, and durability. It's designed with you and your family in mind, this mattress is made without fiberglass 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, and Queen.

Brand: LUCID


Size: Twin


Product Dimensions: 74"L x 37.5"W x 5"Th


Item Weight: 14.3 pounds


Item Firmness Description: Firm


Top Style: Smooth Top


Cover Material: Polyester Blend


Number of Layers: 2


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


Weight Limit: 400 pounds


Item Firmness Description: Firm


Number of Layers: 2


Weight Capacity Maximum: 400 pounds


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


Size: Twin


Item Dimensions L x W x Thickness: 74"L x 37.5"W x 5"Th


Item Weight: 14.3 pounds


Item Thickness: 5 inches


Item Depth: 5 inches


Item Dimensions: 74 x 37.5 x 5 inches


Cover Material: Polyester Blend


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


Product Care Instructions: Hand Wash Only


Mattress Comfort Layer Material: Gel Memory Foam


Material Type: Gel Infused Memory Foam, Memory Foam Infused with Bamboo Charcoal


top-style: Smooth Top


Color: White


Shape: Round


Style Name: 5"


Brand Name: LUCID


Model Name: Lucid 5 Inch Gel Memory Foam Mattress - Firm Feel - Gel Infusion - Memory Foam Infused with Bamboo Charcoal - Breathable Cover - Twin


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


Model Number: LU05TTFR30GF


UPC: 840008332716


Number of Items: 1


Mattress Type: Standard Mattress


Number of Packs: 1


Manufacturer: LUCID


Manufacturer Warranty Description: 10 year warranty.


Item Highlight: Firm feel, 5 in profile, Bamboo charcoal and cooling gel, Fiberglass free, CertiPUR-US certified, Bed in a box, Breathable


Unit Count: 1 Count


Age Range Description: Adult, Teen


Included Components: Mattress


Item Type Name: Bed Mattress Conventional


Manufacturer Part Number: LU05TTFR30GF


Set Name: Twin


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 25 – Oct 31

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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Similar Products

Top Amazon Reviews

    • Surprisingly good for the price
Size: Twin Style: 5" Pattern Name: Firm
I bought this Lucid 5” memory foam mattress for a simple setup and honestly didn’t expect much, but it turned out better than expected. It’s definitely on the firmer side, which I personally like, especially for back support. Even though it’s only 5 inches thick, it feels supportive and doesn’t sink too much. It works great for a guest room / kids room / lighter use, and it fits perfectly on a platform bed frame. Setup was super easy and just unbox and let it expand. I also noticed it doesn’t trap too much heat compared to other memory foam mattresses, which is a plus. No strong chemical smell either after airing it out for a bit. Overall, great value if you’re not looking for something super thick or ultra-plush. Solid, simple, and gets the job done. If you want it a little more “Amazon top reviewer style” (shorter, more punchy, or more critical), I can tweak it 👍 ... show more
Reviewed in the United States on March 20, 2026 by Shopping Ninja
    • Firm and comfortable
Size: Queen Style: 10" Pattern Name: Firm
Very comfortable, prefect level of firmness. I've owned this one for about two months now and it's just as good as the day I set it up. It's replacing another Lucid I had that wasn't as firm, but still lasted 4 years.
Reviewed in the United States on August 23, 2026 by Bill Krom
    • Firm is Hard
Size: King Style: 10" Pattern Name: Firm
Bought the 10” Lucid in the firm version at the very end of December 2020 (post Christmas sale). Wanted the overall height of the bed to be lower than our previous 14” Simmons memory foam on foam platform supporting box spring. That was furniture store bought and which was about 10 years old. It had depressed where we each usually sleep. Kept the platform which really didn’t appear to have any sag and added a wood slat support on top of it to preempt it from getting any from the thinner mattress. Let the new mattress breathe after unboxing for four days. Put it in place and attempted sleep for a few nights. Then we talked and found out we were sharing the same pain. Bone joints; shoulders, hips, knees, and elbows, ached for both my spouse and me; hubby 6’3” 188 lbs & wife 5’3” 118. Tried sleeping on back, sides and front. By the 7th of January we bought a 4” combination mattress pad that’s 2” more memory foam and 2” polyester padding. So much for the thinner profile and actually seeing much of our headboard. This made the bed comfortable and our sleeping nightly remained sound until November 2023. By then the sleep spots were getting depressions in the top of the bed which were no longer removed by a wash of the fiber pad and fluffing. Removed the mattress pad combo and replaced with to another pad set that claims 4” but is really 2.5” memory foam and 1” polyester pad and this has rejuvenated full night’s sleep and a flat bed top again.No depressions were noticed in the mattress when making the topper switch. It was so hard I don’t know that we could depress it. Overall thoughts - Really wished we could have done a lay test. Pleased the Lucid mattress has held shape. Sad it was about 40% of the price to make it sleep worthy. Okay with the fact that add got us 3 years of use and it was about that same amount to renew the feeling rather than buying a new mattress. If it goes another 2-3 years then the value decision to get a bed in a box has been comparatively inexpensive to the store experience and we’ll do it again. ... show more
Reviewed in the United States on January 10, 2024 by Kris-n-Tom
    • Best mattress you’ll ever own
Size: King Style: 10" Pattern Name: Firm
I am writing this review after having owned this mattress for three years. This is the best mattress ever. You’ll sleep like a baby. It is firm, but your body will simply relax and you’ll fall asleep very quickly. In the morning you’ll awake well rested and completely pain free. Great quality and great price. ... show more
Reviewed in the United States on July 2, 2026 by Tami Brown
    • The firmest of the firm
Size: Twin XL Style: 5" Pattern Name: Firm
If you like firm then the 5” is perfect. I’ve had the mattress for 5 years now and it’s just as firm as when I first got it. Great for my back.
Reviewed in the United States on September 5, 2026 by Elbow
    • Finally, A Full Night's Sleep
Size: Full Style: 5" Pattern Name: Firm
Got this during Prime Day to replace a couple of foam toppers I have been using on a hand-me-down traditional full mattress and box springs set that is still too hard for my taste despite being broken down. The two toppers were about 5 inches total of just "memory foam" and weren't really getting the job done. I am 62, overweight, and have arthritis in many joints, including my hips. I sleep mainly on my left side but at times, my left hip would hurt and I would end up on my back during the night. This caused my back to hurt and my legs to go numb. Not to mention apnea episodes with multiple wakings during the night. To be honest, I really didn't pay much attention to the inches and just saw the good price - got mine for a lot less than what it's going for now. When I got it and saw that it was only 5 inches, I worried. Especially when I read on the company website that it was designed to transition kids from the crib to a full size bed. I was afraid it wouldn't be firm enough to give the support I needed. Happy to say that assessment was very, very wrong. I got it out of the box at around 11:00 am and it was fully decompressed by the time I was ready for bed 12 hours later. There was no strong smell that I could detect and I am very sensitive to smells. It's firm enough to keep my hip from hitting bottom yet cushy enough to keep me pain free. I woke up on my side, exactly as I had gone to sleep. Basically, I slept like a rock and woke up feeling a lot better than I usually do. I would definitely recommend this mattress if you are looking for a replacement. However, considering how the full mattress is suddenly going for more than twice what I paid for mine during Prime Day, you might want to check around for a better price if you're looking for a full. By the way, this mattress works just fine atop a traditional mattress and box springs. I even have another foam topper between the older mattress and this new one but only because it would have been a royal pain to have gotten rid of the topper first. ... show more
Reviewed in the United States on July 24, 2022 by P. Thompson
    • Try here before the mattress store
Size: Full Style: 10" Pattern Name: Firm
The web site for the product aside (which is no good) the mattress is terrific. I stayed at an air b&b and this was the exact mattress I slept on for five nights. I got home and bought it right away. The support is excellent. The firm (I got) is solid in a supportive way. It's cool and has no gasses. I was able to sleep on it the first night but it got to where it is supposed to be during the second day. I LOVE IT! My lower back and hips love it. And talk about value; it's great. I just bought a great mattress for three times the price six months ago; it's a good one. But I am 'regifting'. I am staying with Lucid. ... show more
Reviewed in the United States on May 2, 2026 by Barbara A. Bitela
    • Don't try to buy this if you care about your back.
Size: Twin Style: 5" Pattern Name: Firm
Review Image by YD
Review Image by YD
Review Image by YD
Review Image by YD
Review Image by YD
Review Image by YD
Bad quality and customer service. Don't buy it for your health. I bought this mattress one year ago. recently I feel my back are really hurt, after carefully check, I found it was caused by the mattress. The middle part of the mattress are soft than other part obviously, so that my back was not support properly when I sleep. I try to contact costumer service, it is really hard to reach them. Finally I got response from them, after over 1 month explanation, they told me that the warranty only covers lasting indentations or sags deeper than an inch and a half. How that possible to a 5 inch mattress has a one and half deep hole in the middle? so ridiculous!! The first photo shows that the mattress is placed on a hard, flat wooden bed frame, ensuring there is no uneven support from underneath that could affect its shape. The second photo confirms that this is your Lucid 5-inch mattress. Photos 3 and 4 demonstrate the degree of sagging when two 5-pound weights (a total of 10 pounds) are placed in the center of the mattress. I positioned a metal ruler across the measuring points so that its edge is perfectly aligned with the top surface of the mattress. One photo shows the ruler placed in front of the weights, and the other shows it placed behind them, allowing you to clearly see the height relationship between the ruler’s edge and the top of the weights. It is obvious that in this case, the ruler’s edge is higher than the top of the weights. Photos 5 and 6 provide a comparison, using the same two weights placed near the edge of the mattress. The ruler is again placed across the two sides to align with the mattress surface. In this case, the ruler’s edge is clearly lower than the top of the weights. By comparing the mattress’s deformation when the weights are placed in the center versus near the edge, it is clear that the center area is softer and lacks proper support. ... show more
Reviewed in the United States on August 25, 2025 by YD

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