Plank Luxe Zoned Mattress provides personalized firmness for superior sleep. This innovative mattress features a dual-sided design, offering both firm and extra-firm comfort levels. Targeted lumbar support from zoned foam reinforces the lower back, while individually encased coils deliver responsive pressure relief and a stable sleeping surface. An open coil system enhances breathability, with an optional GlacioTex™ Cooling Cover available for advanced temperature regulation.