CALQS Hot-to-Suru Pillow PLUS Mid Olive] Pillow, Neck, Shoulders, Warms, Warmer, Hot, Warm, Hot, Mother's Day, Sensitivity to Cold, Safe, Cold, Winter, Good Sleep, Sleep, Warming Goods, Bedding, Memory Foam, High Resilience, Sleep, Reviews, Gift, Hot Pillow, CALQS, SurvaQ, Sabakyū Reference Price: ¥21,000 Pillow Type: Bed Pillow Color: Mid Olive Size: Standard Brand: CALQS Cover Material: Cotton Target Age: Adult [Warming Function] The temperature can be set in 4 levels (35°C~50°C), making it ideal for counteracting air conditioner chills in the summer.