Solar-Powered Smart Cooling Pillow
A solar-powered smart pillow that uses phase-change material charged by sunlight to provide active cooling all night long. Designed for hot climates where air conditioning is expensive or unavailable, it lets people sleep deeply despite 90°F+ temperatures by storing the day's solar energy as nighttime cooling power.
THE WOW MOMENT: You lay your head on the pillow after a brutally hot day and feel an instant, refreshing cool that lasts for 8+ hours. You check the companion app and see "6 hours of cooling remaining" — generated entirely from the sun that beat down on your windowsill all day. You fall asleep instantly and wake up actually rested for the first time since summer started.