⚠️ This is a 6-hour sleep program built around Delta wave sound, designed to support deep sleep. Made for those who wake up several times during the night, and those who feel foggy the next morning. The screen fades to black after 10 minutes, and only the sound continues until morning.

[Who this is for]
・You wake up several times in the night and can't get back to sleep
・You wake up feeling foggy, even after resting
・Names and everyday words don't come to you as quickly as before

[What this does]
At the start, you'll notice a faint "swell" moving beneath the sound. See if you can feel that slow, back-and-forth wave.
Waking up at night isn't only about age. While you sleep, your brain is believed to open a window of time to flush out the "brain waste" that builds up during the day. Each time you wake, that window closes early.
This video is designed to help keep that window open until morning.
※ No ads interrupt this video. Enjoy all 6 hours without interruption.
※ The Delta wave swell uses a difference between the left and right channels. If you're on a phone, we recommend using headphones.

== Why 6 hours ==
So that if you wake in the night, the sound is still there.
Six hours covers most of the night's deep-sleep window.
If you wake up, please don't turn it off — just close your eyes again.

If you could feel the swell, please let us know with a 👍.

⭐ If night waking is on your mind again, come back anytime. New frequencies every Monday and Friday night. Subscribe to catch the newest one.

== 🎧 Timeline ==
00:00 [Sensation] The swell beneath the sound
00:30 [Technique] Delta waves × 285Hz
01:02 Scene 2
02:04 Scene 3
03:04 Scene 4
10:00 Screen fades to black (sound continues)

== 🔬 The Science Behind This (Mechanism) ==

[Brain waste, flushed out during sleep]
The brain is believed to have a built-in system for clearing waste while we sleep.
Research from the University of Rochester found that the space between brain cells widens during sleep, allowing more waste clearance than during waking hours.
※ This research was conducted in mice.
(Xie et al., "Sleep Drives Metabolite Clearance from the Adult Brain," Science, 2013)

[Deep sleep and waves of fluid moving through the brain]
Research from Boston University observed that during deep sleep, cerebrospinal fluid moves through the brain in large waves, timed with slow brain waves.
(Fultz et al., "Coupled electrophysiological, hemodynamic, and cerebrospinal fluid oscillations in human sleep," Science, 2019)

[Delta waves]
Delta waves are slow brain waves (0.5–4Hz) that appear during deep sleep. This video creates a subtle 3Hz swell using a small difference between the left and right audio channels.
Because this video is designed to guide you toward sleep, we recommend using it at bedtime rather than during the day or while driving.

[About the visuals]
Five scenes from a Japanese garden at night change every minute. The screen fades to black after 10 minutes, and the sound continues alone for 6 hours. If you're on your phone, feel free to just set it down and rest.

== ⚠️ Disclaimer ==
・This video is a relaxation audio work and is not a substitute for medical treatment.
・If night waking, light sleep, or memory concerns continue, please consult a medical professional.
・If you have depression, epilepsy, or any other mental or physical condition, please consult a doctor before listening.
・Because this may affect brainwave activity, never listen while driving or operating machinery.
・If you feel any discomfort while listening, stop playback immediately and rest.
・Keep the volume low enough that voices are only just audible.

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#NightWaking #BrainWaste #SleepMusic #DeltaWaves #285Hz #NervousSystemReset #Menopause #DeepSleep #HealingMusic
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