Description
Price: $388.00 - $360.99
(as of Oct 16, 2025 12:28:13 UTC – Details)
Amazon Basics Memory Foam Mattress, Medium Firm, 12 Inch, King, White/Grey
💕Firm-feeling : Our Amazon Basics 12 inch gel memory foam mattress king size includes 3 inches of gel memory foam, 2 inches of comfort support foam and 7 inches of flex comfort foam for a medium firm feel. This king bed mattress conforms to different sleep positions and is ideal for side, back and stomach sleepers, providing you with comfortable and cloud-like sleep.
💕Certified Safe: Crafted with high-quality CertiPUR-US certified foams and an OEKO-TEX Standard 100 certified mattress cover, ensuring this medium firm king mattress 12 inch is free from harmful chemicals. Additionally, thanks to the wave-shaped support layer in the middle providing airflow, offering you and your loved ones a safer and healthier sleep.
💕Pressure-Relieving: Cooling gel-infused memory foam conforms to our body curves perfectly, distributes the body weight evenly and reduces pressure points on our shoulders, spine and hips. This 12 inch king mattress meidum firm feeling allows you to relax from head to toe after a long and busy day of work and study.
💕Excellent Quality: This breathable and comfortable memory foam Amazon Basics mattress cover is made of premium knitted fabrics, providing excellent comfort and durability. Equipped with the premium zipper at the bottom, this mattress cover can be easily removed for daily cleaning, allowing you to enjoy a refreshing night’s sleep.
💕Easy Installation: Our gel memory foam mattress in a box king size is compressed and rolled into a box for easy transportation through hallways and elevators. Simply follow the instructions for easy setup and witness the magical moment of rebounding. This mattress is compatible with most kinds of king bed bases and frames, even use it on the floor bed, perfect for bedrooms, guest rooms and dorm rooms.
💕General Note: Please allow 72 hours for this king size mattress to regain its full shape and for any potential odor to dissipate. Tapping, walking and jumping with your family member on the mattress can speed up the awakening process and enjoy the fun of family games during this time.
Customers say
Customers find the mattress comfortable, with no pain reported, and appreciate its quality and value for money. The sleep quality is positive, with customers noting it promotes restful nights and feels like sleeping on a cloud. The softness receives mixed feedback, with some describing it as soft but firm while others find it too firm. Back support and size also get mixed reviews – while some find it supportive, others report no support at all, and while the full size is bigger than expected, customers note it’s not expanded to 6 inches. The smell receives mixed reactions, with some reporting no weird smell while others find it unbearable.
Reviews
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