Jo Craven McGinty, WSJ Science Bureau Chief and a specialist in sleep technology, dives into the world of innovative wearable devices designed to enhance sleep quality. She discusses fascinating tech like the EleMind device, which uses sound to modulate brainwaves, and the Somni headband, delivering electrical pulses for better sleep. McGinty also highlights the Lumos sleep mask that adjusts circadian rhythms through light stimulation, proving especially useful for travelers and shift workers. Discover how these advancements might revolutionize your nightly rest!