【Easy Self-Care Just by Sleeping】Complete stretching and muscle training simultaneously just by sleeping. Your daily condition will improve without overdoing it. 【Relax with Heater & Stretch】The combination of heat and stretching cares for misalignment and stiffness while relaxing. 【Achieve Multi-Directional Stretching】Built-in airbags inflate up, down, left, and right, stretching your body while you sleep. 【Stimulate Muscles Thoroughly with EMS】Efficiently stimulates muscles you don't normally use, supporting myofascial release and muscle strengthening. 【Easy Even on Busy Days】You can continue without overdoing it because you only need to sleep, even on busy or tiring days.