【Medium Feeling & Motion Isolation】HIMMLINE Hybrid Mattress is supported by hundreds of individual pocket springs, which can absorb partner movement and relieve pressure. The multi-layered foam combination with high-density Gel Memory Foam and 3D soft knitted fabric enhances comfort and edge support. Will not sink with long-term use. 【Multilayered Comfort Design】The top of Himmline Mattress is made of breathable 3D knitted fabric. The second layer of 1 inch high-density gel memory foam ensures a comfortable and cool sleep. The third layer features a 3-inch combination of comfortable and supportive foam, providing both a soft body feel and extra support. The fourth individually pocket spring layer strengthen the support. The bottom of the mattress has a anti-slip and breathable layer to ensure stability. 【Breathable & Cooling Sleep】Himmline 10 inch full size mattress is made with 3D soft knit fabric that is breathable and skin-friendly. Under the cover, the high-density foam combination and individually pocketed spring design effectively promotes air circulation and heat dissipation, helping to adjust body temperature and create a dry and comfortable sleeping environment, ensuring that you stay cool and comfortable all night long.