Behost 12 inch Twin Mattress in a Box for Small Space, Medium Firm Hybrid Mattress, Upgrade 8-layer Support

The twin mattress features an eight-layer structure with progressive support for uniform support from surface to base, enhancing durability and shape memory Independent pocket springs paired with high-density foam provide zoned support; each zone moves independently to minimize disturbances and improve sleep quality The twin size mattress offers a medium firmness that balances spinal alignment and comfort, suitable for a range of supine and side sleeping positions Premium 3D knit fabric, skin-friendly and breathable; CertiPUR-US certified materials, free of harmful substances; suitable for twin bed