3" SEALYCOMFORT GEL MEMORY FOAM: This cushioning gel memory foam layer conforms to the shape of your body, providing tailored pressure relief and support where you need it most 3.25" SEALYSUPPORT TRANSITION FOAM: This additional layer of high-density foam enhances the overall comfort of the twin size mattress by offering extra support and durability 7" SEALYRESPONSIVE ENCASED COILS: Featuring individually encased coils, this twin memory foam mattress provides targeted support across the entire surface, allowing for independent movement and reduced motion transfer SEALYCOOL STRETCH KNIT COVER: Soft and stretchable, this knit cover enhances airflow and helps regulate temperature, keeping you cool and comfortable throughout the night