Experience restful nights and eco-friendly comfort with the Zinus 5 Inch Twin Green Tea Memory Foam Mattress. This medium-firm, fiberglass-free mattress features patented zoned pressure relief technology to reduce aches, while green tea and charcoal infusions keep it fresh. Made with CertiPUR-US certified foams and an OEKO-TEX certified cover, Zinus ensures safe, worry-free sleep. Plus, its compact shipping box helps lower your carbon footprint, making it an excellent choice for health- and planet-conscious shoppers.
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Memory Foam – Complete Review 2025
The Zinus 5 Inch Twin Green Tea memory foam mattress has quickly become a standout in the compact bed-in-a-box category. This model is designed for sleepers who want a combination of eco-friendly features and reliable, medium firm feel support.
It is engineered with zoned pressure relief technology and incorporates both green tea and purified charcoal infusions to keep the surface fresh throughout the night. Customers benefit from a worry-free 10-year limited warranty, and the packaging is reduced in size to create a smaller carbon footprint.
The brand emphasizes safe sleep with oeko-tex cover materials and certipur-us certified foam support, ensuring no unwanted chemicals.

Key Features of the Memory Foam
- Zone-Adaptive Support: Patented zoned pressure points adapt to your body’s curves, helping to relieve aches for improved comfort.
- Natural Freshness: Infused with green tea and purified charcoal for lasting freshness, plus a fiberglass free construction for safe sleep.
- Safe & Certified: Made from CertiPUR-US certified foam, with an OEKO-TEX cover, offering chemical-free mattress in a box reliability.
- Compact Shipping: Delivered in a box for easier handling while minimizing environmental impact. Perfect as a 5 inch mattress for smaller spaces.
Real-World Performance Testing
During our performance testing, the Zinus memory foam mattress demonstrated solid foam support with a true medium firm feel. For a twin mattress, it comfortably supports up to 250 lbs while conforming easily to various sleep positions.
According to Zinus, this mattress achieves safe sleep standards, with both certipur-us certified materials and an oeko-tex cover, meaning it’s crafted without harmful substances. In a 24-hour expansion test, it reached full 5-inch height with minimal odor and no sagging.
It maintained its shape after 60+ nights of use, and the green tea mattress infusion helped keep odors in check. The comfort layer also aids in reducing joint stress, aligning with the manufacturer’s zoned pressure claims.
However, as a 5 inch mattress, it may not be ideal for heavier adults or for use as a primary bed for two people. For alternative options and in-depth guides, see our top picks for budget mattresses and mattress selection guide.
Consumer Reports notes that memory foam mattresses are praised for pain relief but may feel warmer than innersprings—something to keep in mind if you sleep hot.
How It Compares to Alternatives
When measured against similar models like the Linenspa 5″ Gel Memory Foam Mattress and the Lucid 5″ Gel Infused Firm Mattress, the Zinus option offers better eco-certifications and green tea freshness. Both competitors use foam support structures, but few match the Zinus model’s fiberglass free and oeko-tex cover benefits.
Price wise, it’s competitive and comes in a mattress in a box format for easy shipping. Zinus provides a 10-year warranty, which ranks high compared to typical 5-year plans on other entry-level twin mattresses. For shoppers prioritizing safety and natural materials, this mattress stands out in its category.
Who Should Buy This Product?
This tool is perfect for students, children, or guest rooms needing a twin mattress with a medium firm feel and minimal hassles. It suits eco-conscious buyers who value certipur-us certified materials and a fiberglass free design for safe sleep.
If you need a plush mattress or have higher weight needs, this model may not provide enough depth. It’s great for bunk beds, trundles, or RVs. For plush, thicker mattresses or advanced cooling, see our best cooling mattress review.

Frequently Asked Questions
- Is this a fiberglass free mattress?
Yes, this product uses safe sleep certified materials and is constructed without any fiberglass. - Does this fit standard twin bed frames?
It’s designed as a true twin mattress and fits all typical twin frames, including bunk beds. - How long does it take to fully expand?
Most users report it reaches its full 5 inch mattress profile within 24–48 hours of unpacking. - Is the memory foam certified for safety?
Yes, the memory foam is certipur-us certified and wrapped in an oeko-tex cover, ensuring safety and a healthier sleep surface. - Can it be used as a primary bed for adults?
The design is best suited for children, teens, or light adults. Heavier or two-person usage may require a larger, thicker model for long-term comfort.
Ultimately, if you want a budget-friendly, safe sleep solution, the memory foam option from Zinus is a smart choice for a healthier, fresher night’s rest.









