Here is a smart wearable device that uses PrecisionCool technology to reduce metabolic activity in the frontal cortex and help you sleep better. Ebb is a fluid-filled headband that wraps around the head and cools the forehead. As your brain activity declines, you will fall into a deeper sleep.
Ebb uses leak-locked cartridges. The fluid mix used doesn’t have any harsh chemicals. The product was showcased at CES2020.