Kingsdown Luxury Mattresses - Smart technology, unprecedented quality, and handcrafted artistry for smarter sleep. Or browse mattresses by feature: Airflow Technology Kingsdown Airflow Technology promotes air circulation for extraordinary breathability so you can enjoy more refreshing sleep.; Gel Gel infused foams and fibers provide pressure relief while dissipating heat, to promote cooler, more refreshing sleep.; High Coil Count Kingsdown mattresses feature industry leading coil counts, including ...