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Description
4Inch Memory Foam Sofa Bed Replacement Mattress for Queen Size Sleeper Sofa & Couch Beds - Made in USA - Washable Material/Non-Slip Base - Sofa Not Included - 72”L x 58”W x 4”HAbout This The Graphene Technology Cover is made of nylon and highly absorbent Graphene fiber, making it anti static, anti pilling, and durable. It allows sweat to evaporate easily and keeps the skin dry, which is perfect for hot or humid weather, ensuring that moms no longer have to worry about their kids sweating or catching a cold. The Fiberglass free FR Inner Cover avoids the harmful effects of fiberglass and other fire retardant chemicals, making
About This
- The Graphene Technology Cover is made of nylon and highly absorbent Graphene fiber, making it anti-static, anti-pilling, and durable. It allows sweat to evaporate easily and keeps the skin dry, which is perfect for hot or humid weather, ensuring that moms no longer have to worry about their kids sweating or catching a cold.
- The Fiberglass-free FR Inner Cover avoids the harmful effects of fiberglass and other fire-retardant chemicals, making it healthy and eco-friendly.
- The Temperature Adjustable Gel Memory Foam is infused with gel and ventilated to promote air circulation, radiating heat and preventing overheating during deep sleep, resulting in more restful sleep. The high-density base foam relieves pressure points and clings to the body, relieving stress from work during the day.
- The Stable & Durable Base is made of flexible support base foam that ensures long-lasting durability and stability. The full mattress is compatible with most bases and frames, such as box Spring, floor, slatted base, and flat platform. All memory foam is CertiPUR-US certified and free of harmful substances, ensuring everyone's enjoyment.
- The & No Risk policy offers a 10-year backed by a professional product development and team with several branches nationwide. The new brand, Gelsea, is under the Crescent range, and if for any reason you are not satisfied, you can contact them at any time. Please note that the mattress is recommended to air out and reshape for 72 hours.
Overview
- Brand : Gelsea
- Size : Queen
- Product Dimensions : 72"L x 58"W x 4"Th
- Top Style : Gel Top
- Cover Material : Nylon
- Fill Material : Gel Memory Foam, Memory Foam, High Density Foam
- Special Feature : Temperature Regulating, Pressure Relief, Fire Retardant, Breathable, Removable Cover
- Color : 4 Inch
- Model Name : Crescent
- Product Benefits : Breathable, Temperature Regulating, Used for folding couch bed frames,boat,camper & RV
- : Item Weight 22.4 Pounds Item Firmness Description Medium
- : Item Weight 22.4 Pounds
- : Item Firmness Description Medium
- : Age Range (Description) Adult Construction Type Gel Foam
- : Age Range (Description) Adult
- : Construction Type Gel Foam
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1663 reviews
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Product Reviews
★★★★★ 2
Just linear
Format: Paperback
I appreciate that it helps to organize the chaos of information, but I just used the template verbatim with my manager and it did not go very well. He said this linear approach does not work anymore with high-level corporate audiences. They want to cut right to the chase and start to dig into the deep details. This layout with simple images, even if you just pull away the map and anchor slides, makes the storytelling too much like a story, not giving enough credit to the speed at which certain audiences can and do process data on a slide. It was an interesting exercise and I still think this linear layout works in some cases. Just not if you are trying to communicate business case or other C-suite type of information.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2021
★★★★★ 5
Excellent AI security book
Format: Paperback
A necessary book for those who in work in the AI Security field. It is easy to read and easy to follow along with practice labs. The author did a good job incorporating the breadth of AI threats.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2026
★★★★★ 5
A good book for Cyber Professionals
Format: Paperback
A very good book, I absolutely love how it gives security professionals much needed AI security insights.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
★★★★★ 5
In-depth and highly technical!
Format: Paperback
"Adversarial AI Attacks, Mitigations, and Defense Strategies" by John Sotiropoulos is a must-have resource for cybersecurity professionals navigating the complexities of AI security.
This book is an incredibly in-depth guide that tackles the intricate details of defending AI systems from adversarial attacks. It’s highly technical, making it an excellent choice for those with a solid background in cybersecurity, machine learning, and system administration. Sotiropoulos doesn’t shy away from the details, providing comprehensive code examples, system admin settings, and scripts that are invaluable for practical implementation.
One of the standout aspects of this book is its coverage of both predictive and generative AI. This dual focus ensures that readers are well-equipped to handle security challenges across different AI applications. Whether you're dealing with machine learning models in a predictive context or exploring the relatively newer field of generative AI, this book has you covered.
If you’re looking for a technical, hands-on approach to securing AI systems, this book is an essential addition to your library.
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Reviewed in the United States on August 12, 2024
★★★★★ 4
Good and thorough!
Format: Paperback
I was amazed to see a thick book arriving in the package and spent quite some time reading this. The book is so hands-on. I build agentic systems at work and going through these concepts felt good. My only complaint is that the code snippets are not up to date for which I had to edit my code several times.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
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