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12 in, medium firm, fiberglass free
Listing title confirms a 12-inch Medium Firm queen gel memory foam mattress with bamboo charcoal and cooling gel, stated fiberglass free and CertiPUR-US certified.
The Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size ($449.99) is worth considering with a 5.9/10 consensus score across 3 expert reviews. Experts highlight the only listing in this comparison that states fiberglass free in its title — a specific, checkable answer to a real consumer problem and also states certipur-us certification, so two material questions are settled before the box is opened. Amazon (listing spec) — Listing title confirms a 12-inch Medium Firm queen gel memory foam mattress with... Best for: buyers for whom fiberglass in a mattress is a dealbreaker, side sleepers and average-weight back sleepers already confident that medium firm suits them, anyone who wants the materials question answered on the listing rather than on the law label.
Mixed3 Expert Reviews
Price Range
Check Price on Amazon →$449.99
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Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size
queen-mattresses
Expert Consensus: 5.9/10 across 3 sources
Last verified:Key Features
- ✓ 12-inch all-foam build
- ✓ Bamboo charcoal and cooling gel layers
- ✓ Medium Firm feel
- ✓ Fiberglass free and CertiPUR-US certified per the listing title
- ✓ 30-day return window, 10-year limited warranty
Best For
buyers for whom fiberglass in a mattress is a dealbreakerside sleepers and average-weight back sleepers already confident that medium firm suits themanyone who wants the materials question answered on the listing rather than on the law label
What Experts Agree On
What Experts Love
- ✓ The only listing in this comparison that states fiberglass free in its title — a specific, checkable answer to a real consumer problem
- ✓ Also states CertiPUR-US certification, so two material questions are settled before the box is opened
- ✓ Mattress Clarity rates the Lucid gel foam 6.5/10 for firmness, the industry medium-firm standard, and finds it suits side sleepers and average-weight back sleepers
Common Criticisms
- ✗ Sleep Foundation lists a 30-day return window — the shortest trial in this comparison by 70 nights
- ✗ Sleep Foundation scored temperature control 4.5/10 on the Medium build, explaining that the memory foam restricts air circulation and retains heat due to its density
- ✗ Mattress Clarity does not recommend it for especially hot sleepers and found testers sank through the top comfort layer at the edge
- ✗ Sleep Foundation tested the Soft and Medium builds of this line; the mattress priced here is the Medium Firm, so their figures are the closest verified evidence rather than a test of this exact firmness
What The Experts Say
SL
temperature 4.5/10, 30-day return
Sleep Foundation rates the Lucid gel memory foam line Soft (3) and Medium (5), scoring the Medium 4.5/10 on temperature control because the memory foam restricts air circulation and retains heat due to its density, with a 30-day return window and a 10-year limited warranty.
MA
firmness 6.5/10, 5-7 year life estimate
Mattress Clarity rates the Lucid gel memory foam 6.5/10 for firmness, the industry medium-firm standard, suiting side sleepers and average-weight back sleepers, but notes it traps body heat, is not recommended for especially hot sleepers, and that testers sank through the top comfort layer at the edge. They estimate five to seven years of service.
Ready to buy the Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size?
Check Price on Amazon$449.99 · 3 expert sources · 5.9/10 consensus
Frequently Asked Questions
Is the Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size worth it?
Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size earns a 5.9/10 consensus score across our 3 cited expert sources. It is rated "Mixed" — buyers for whom fiberglass in a mattress is a dealbreaker. At $449.99, Listing title confirms a 12-inch Medium Firm queen gel memory foam mattress with bamboo charcoal and cooling gel, stated...
Who is the Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size best for?
Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size is best for: buyers for whom fiberglass in a mattress is a dealbreaker, side sleepers and average-weight back sleepers already confident that medium firm suits them, anyone who wants the materials question answered on the listing rather than on the law label. Experts rate it "Mixed" overall.
How does the Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size compare to other Bedding & Sleep options?
Among the Bedding & Sleep products we have reviewed, Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size ranks below average with a 5.9/10 score. Sleep Foundation rates the Lucid gel memory foam line Soft (3) and Medium (5), scoring the Medium 4.5/10 on temperature ...
What smart home systems does the Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size work with?
Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size works with major smart home platforms. Check our compatibility notes on the product page for any setup requirements or hub dependencies.
What are the pros and cons of the Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size?
The main pros of the Lucid 12" Medium Firm Gel Memory Foam Mattress – Bamboo Charcoal & Cooling Gel – Fiberglass Free – Bed in a Box – CertiPUR-US Certified – Queen Size are the only listing in this comparison that states fiberglass free in its title — a specific, checkable answer to a real consumer problem and also states certipur-us certification, so two material questions are settled before the box is opened. The main downside is sleep foundation lists a 30-day return window — the shortest trial in this comparison by 70 nights. Overall, experts rate it "Mixed" with a 5.9/10 consensus score.
Affiliate disclosure: DormGearHQ.com participates in the Amazon Associates program. We earn a commission from qualifying purchases at no extra cost to you. This consensus review is based on 3 independent expert reviews — we did not test this product ourselves. Always verify current prices and availability before purchasing.