Frequently Asked Questions

Optimiz uses your smartphone's built-in accelerometer and microphone to detect movement patterns and breathing sounds. By analyzing these signals with our advanced algorithms, we can accurately determine your sleep stages without requiring any additional hardware or wearables.

White noise contains all frequencies at equal intensity, creating a consistent "shushing" sound that's excellent for masking sudden noises during light sleep. Pink noise has more power in lower frequencies, creating a deeper, more balanced sound that research shows can enhance deep sleep and improve memory consolidation.

We've optimized Optimiz to be extremely battery-efficient. On most devices, you'll use about 15-20% battery over a full 8-hour sleep session. We recommend plugging in your phone while using the app for the best experience, but it will work fine unplugged if needed.

Absolutely. Your sleep data is stored locally on your device and is never uploaded to our servers or shared with third parties. We believe your health data belongs to you and you alone. Optional cloud backup is available but completely opt-in.

Place your phone on your nightstand or bedside table, within about 3 feet (1 meter) of your pillow. Make sure the microphone isn't blocked and the phone is on a stable surface. The app will calibrate to your environment during the first few nights of use.

Yes! Optimiz's algorithms are designed to focus on the user closest to the phone. For best results with a partner, place the phone on your side of the bed. The soundwaves are gentle enough not to disturb your partner but effective enough to enhance your sleep.

Optimiz is free to download and includes all core features: sleep tracking, adaptive soundwaves, noise canceling, and smart alarm. Premium features like advanced analytics, additional sound libraries, and personalized sleep coaching are available through an optional subscription.

Many users report feeling more rested after their very first night. However, the app learns your unique sleep patterns over time, so you'll see the best results after about a week of consistent use. The sleep analytics become more accurate and personalized the longer you use the app.