A little help, when you need it

SleepFast support.

Need a hand? Email info@yuzi.nl. Include your iPhone model, iOS version, and what happened. Please leave out sensitive health information.

How do I get started?

Finish the short onboarding, then tap “Let's wind down” on the Tonight screen. For a shorter session, try Quick reset. Tap Just sounds for the sound player. The menu at the top opens Tonight, Sounds, Insights, and Settings; More ways to unwind reveals additional tools.

What can I use for free?

The core bedtime ritual, paced breathing, physiological sigh, cognitive shuffle, and rain and ocean sound layers are available without purchase. Premium adds the full technique library, additional sound layers, saved blends, customization, and advanced tools. The paywall explains the available plans before you buy.

How do I restore Premium?

Open the top menu → Settings → Restore purchases. Use the Apple Account that made the original purchase and an internet connection. If access still does not return, check your subscription status in iPhone Settings and email us.

How do I cancel a subscription or request a refund?

On your iPhone, open Settings → your name → Subscriptions → SleepFast → Cancel Subscription. Deleting SleepFast does not cancel billing. Apple handles refund requests at reportaproblem.apple.com.

Why can't I hear the sounds?

Start a sound blend and check the in-app volume and your iPhone's media volume. Check whether audio is connected to headphones, Bluetooth, or AirPlay. A completed sleep timer may have faded playback to silence; start the blend again.

Do I have to allow location, camera, or Health?

No. These permissions are for optional features. Weather-informed suggestions use location, camera biofeedback needs the rear camera, and Health integration can save your self-reported sleep onset. You can decline or revoke permissions and keep using the core features.

Why isn't the camera pulse working?

Biofeedback needs a physical iPhone with a rear camera and torch, camera permission, and steady fingertip contact. Follow the in-app placement and signal instructions. If the phone becomes uncomfortable or warm, remove your finger and stop. Estimates are for relaxation feedback only, not health decisions.

Does SleepFast need an account or internet?

No SleepFast account is required. Core breathing, sounds, and local records work on your device. Purchases, restoration, weather requests, and opening website pages need connectivity. The coach uses on-device AI when supported and built-in guidance otherwise.

Is this a medical app?

No. SleepFast is for general relaxation and bedtime routines. It does not diagnose or treat sleep conditions, and results vary. If sleep difficulties persist, speak with a qualified health professional.