Three Switches for Warmth from Your Toes to Help You Sleep Comfortably on Cold Winter Nights Three Secrets to the Sleep Switch 1. Turn on the Sleep Switch by Warming Your Soles: Warm your soles, where key acupressure points and blood vessels are concentrated. 2. Turn on the Sleep Switch by Releasing Your Toes: Open-toe design prevents heat and sweat from building up. 3. Turn on the Sleep Switch by Relaxing: Warm the acupressure point on your heel with heat-generating material. Get 100 yen off when you buy with other products → #Yakoshop