Why Am I Still Tired?
You Slept 8 Hours.
So Why Are You Exhausted?
The problem isn’t how long you sleep. It’s how deep.
Fix Your Deep Sleep →The Deep Sleep Problem
Most sleep trackers tell you how long you slept. But time in bed doesn’t equal rest. What matters is slow wave sleep — the deep, restorative phase where your brain consolidates memory, repairs tissue, and recharges your immune system.
of adults don’t get enough deep sleep
slow waves per night with NextSense
How NextSense SmartBuds Work
SmartBuds have 6 EEG sensors that read your brainwaves in real time. When you enter deep sleep, they deliver precisely timed pink noise pulses that sync with your brain’s natural slow waves — boosting them by 20-30%.
Detect
EEG sensors identify when you enter deep sleep
Stimulate
Precisely timed pink noise boosts your slow waves
Wake Refreshed
More deep sleep = more energy, better memory, stronger immunity
Ready to Actually Rest?
Join thousands who finally wake up feeling like they slept.
Shop SmartBuds — $249 →30-night risk-free trial • Free shipping • Named to Oprah’s 2026 Sleep Awards