【Comfortable and Breathable】-The 12 inch queen mattress is made of premium knitted fabric. the queen bed mattress is breathable and cool, making your nights cool and sweat-free, so you don't have to worry about waking up from the heat, and experience a refreshing and comfortable sleep every night. 【Reliable Support】-The queen size mattress supported by hundreds of independent pocket springs with good shock absorption and elasticity, designed for all sleeping positions,the queen hybrid mattress medium firmness can fully relax muscles, experience perfect balance support, and greatly improve sleep quality. 【Certified Safe Materials】-The queen spring mattress made of certified safe materials, fiberglass free, free of hazardous substances,the non toxic queen mattress safe and healthy is a trusted choice for health-conscious sleepers. 【 Queen Mattress in a Box】-This hybrid queen mattress is compatible with most bed frames, the bed mattress queen is compressed and packed in a box for easy delivery to your home, upon receipt, please open the mattress and leave it at room temperature for 24-72 hours to fully expand and recover. If you have any questions, our customer team is here to help. 【Quiet Sleep】-This bed queen mattress have an individual pocket spring. create comfortable supports that absorb vibration and noise,the queen mattress motion isolation and immerse yourself in a restful sleep. This Aottress medium-firm hybrid mattress features zero toxic fumes or odors, delivering ultimate comfort and perfect support for superior relief and an exceptional sleep experience. Vacuum-compressed for easy shipping. Constructed with premium materials including CertiPUR-US certified memory foam, high-end knit fabrics, and pocket coils. Features edge support, motion isolation, fiberglass-free cooling, and pressure relief. This mattress effectively absorbs sound and vibration. For optimal performance, please allow 48-72 hours for the mattress to fully expand.