Open up the settings menu to personalize the app by choosing the alarm sound, snooze length, and more. 2. Set the alarm time and press the START button to begin monitoring your sleep cycles. 3. Refer to Help in the settings menu when choosing where to place your phone. 4. The alarm will sound in the time period you set when the app senses that your sleep is at its lightest. 5. After waking up, slide the slider to the right to stop sleep monitoring. [URL Scheme] sleepmeisterlite: [Differences between the free and paid versions] - No advertisements in the paid version