Sleep sounds, bedtime stories &
tools for better sleep.
The modern sleep helper workstation: 44-channel ambient sound mixer, 11 narrated bedtime audiobooks, 4-7-8 parasympathetic breathing guide, 7 tactile Sleep Scapes, and 90-minute sleep cycle calculator. Zero latency, 100% private.
Choose your bedtime tool
Every feature runs on its own dedicated studio page, complete with full controls and sleep science timers.
Sounds & Music
Layer ambient sounds, listen to spoken sleep audiobooks, original relaxing music, and adaptive meditation.
Night Tools
Visual lung pacing, interactive touch star tracing, guided video PMR stretches, and smart alarm with power nap.
Sleep Science
7-night habit trials, circadian chronotype quiz, 40+ dream symbol dictionary, and 18 milestone badges.
The Complete Sleep Helper Toolkit
Designed to tackle the core root causes of sleeplessness: auditory distraction, evening cognitive rumination, autonomic nervous arousal, and circadian misalignment.
44+ Ambient Sleep Sounds & Noise Machine
Mask intrusive sirens, traffic, and barking with calibrated white, pink, and brown noises, continuous rainfall, ocean waves, and 0.5Hz–4Hz binaural sleep frequencies.
Narrated Bedtime Stories for Adults
Calm racing bedtime thoughts and overactive minds with unhurried audiobooks, classical literature, and tranquil seaside journeys voiced specifically for sleep onset.
4-7-8 Breathing & Somatic Reset
Physically trigger your parasympathetic nervous system, slow elevated heart rates, and release muscular tension through guided visual pacing and PMR stretches.
90-Min Sleep Cycle Calculator
Wake up alert during light sleep stages by aligning bedtime and wake times with natural 90-minute ultradian sleep architecture and evening wind-down checklists.
Loved by over 1.2 million sleepers
Here is what clinicians, software engineers, and artists say about Nini.
"nini implements 4-7-8 breathing, progressive relaxation, and 7-night habit experiments with surgical precision. It has transformed how my patients transition into restorative sleep."
"The Lantern Garden night journey is pure magic. Lighting the lanterns slows my racing thoughts in 3 minutes flat. I fall asleep before the story finishes!"
"The audio mixer lets me layer rain, ocean waves, and 432Hz delta tones. It is my indispensable nighttime ritual on my iPhone and Mac."
Frequently Asked Questions
Everything you need to know about Nini sleep sounds, stories, and bedtime tools.
How does Nini act as a complete sleep helper for insomnia and restlessness? +
Nini acts as a multi-modal sleep helper by targeting the 4 biological triggers of sleeplessness: acoustic interference (masked by 44 ambient sleep sounds and white/brown noise), racing cognitive thoughts (calmed by 11 narrated bedtime stories), physical nervous system tension (downregulated by 4-7-8 breathing and PMR stretches), and circadian desynchrony (aligned via 90-minute ultradian sleep cycle planning).
Which sleep sounds and frequencies are most effective for deep sleep? +
Research shows pink and brown noise enhance slow-wave delta sleep by dampening sudden acoustic spikes. Nini also features 0.5Hz–4Hz Delta wave binaural beats and 432Hz/528Hz solfeggio relaxation tones that encourage brainwave entrainment toward deep restorative rest.
Can I layer multiple sleep sounds together in the mixer? +
Yes! Nini includes a 44-sound ambient mixer allowing you to blend multiple nature sounds (rain, ocean, campfire, forest wind), colored noises (white, pink, brown, green), and binaural frequencies with individual volume sliders to build your custom bedtime soundscape.
Why do bedtime stories for adults help quiet racing thoughts? +
Engaging with a low-stakes, calming narrative redirects internal rumination without overstimulating focus. Voiced with unhurried cadence and soothing ambient audio backdrops, Nini bedtime stories ease your mind into gentle alpha and theta transitional sleep states.
Is Nini 100% self-contained and private? +
Yes. All sleep audio, breathing pacing engines, sleep lab habit trials, and dream logs run directly inside your browser and on your device without server-side tracking, external subscriptions, or third-party cookies.