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SleepMaster

Local white noise to help you fall asleep

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78 Built-in Sounds

Rain, campfire, ocean waves, forest birdsong… layer freely with independent volume control per sound

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Auto-Stop Timer

Set a countdown from the bottom bar; audio fades out gently when time's up, so you can drift off peacefully

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Breathing Exercises

Four science-backed methods β€” 4-7-8, Box, Diaphragmatic, and 4-2-6 β€” with an adjustable session length

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Saved Mixes & Sorting

Save any combination as a named mix, rename or overwrite it later, and drag to reorder your sound list

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Background & Lock Screen

Pick from 24 gradient backgrounds, keep playing with the screen off, and control playback from the lock screen

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Fully Offline

Zero network requests, zero permissions, no data collection β€” your privacy is safe

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