``Guitar wave sound that adjusts the autonomic nervous system - For those of you who can't sleep, sleep soundly just by listening to natural sounds. Relaxing sleep with the sound of waves, good sleep, deep sleep'' is the perfect way to relax, with a harmonious combination of the soothing sound of natural waves and the gentle melody of the guitar. This is a sleep music album. This album heals your tired mind and body and helps you sleep deeply. It is designed to lead you to. Effective for relaxing the mind and body, relieving stress, and improving insomnia, this music stimulates alpha waves and helps balance the autonomic nervous system. The sound of the waves induces deep relaxation and leads to a good night's sleep. It also supports sleep induction, deep sleep, and restful sleep, and can be expected to be effective in recovering from fatigue even after a short sleep. This album can also be used as work music or study music, improving your concentration and allowing you to work and study in a relaxed state. Hi Music with a ringing effect is also effective for stress relief. Especially if you're looking for quiet or meditation music. This album is recommended for those who want to sleep soundly, relax, or balance their autonomic nervous system. It uses the Solfeggio frequency of 528Hz, and is effective as healing music that is gentle on the autonomic nervous system. It also includes sounds of water and waves, giving you the feeling of falling asleep in nature. Please enjoy ``Guitar Wave Sound Sleep Music that Calms Autonomic Nerves'', which delivers a calm and soothing time as if you were on a quiet beach.