【Medium Firm Feel】: Molblly Individually Wrapped Coils Innerspring Mattress is supported by hundreds of individual pocket springs, which is durable in use. Independent pocket spring can absorb partner movement and relieve painful pressure points. Memory foam with 3D soft knitted fabric on the top increase its comfort level.【Fiberglass-free】 【High Permeability & More Comfy】: The Molblly mattress made of natural materials, porous cooling foam and spacious coils design promote the airflow in the mattress, helping to efficiently regulate the body’s temperature by removing unwanted heat and improving air movement, creating a dry, restful sleep, thus ensures you have a cool and comfortable sleep throughout the night. 【Five floors of comfort】: The mattress top is made of breathable high-quality fabric. The second layer of 1 inch memory foam ensures a comfortable and cool sleep. The third layer of 2 inches of comfortable foam & support foam layer provides support to avoid the feeling of being trapped in quicksand. The fourth layer is supported by a Individually Pocket Spring layer to strengthen the support. There is a non-slip layer at the bottom of the mattress to ensure that the mattress doesn't slip.