According to one embodiment, a method for providing a sound for sleep induction may include an operation of providing a first sound corresponding to a first user activity based on detecting the first user activity associated with user cognition regarding a period for inhalation of the user's breathing. The first user activity may be a user activity independent of the inhalation rather than a user activity caused by the inhalation of the breathing, and a start time point of providing the first sound may be substantially synchronized with a detection time point of the first user activity. The method may include an operation of providing a second sound corresponding to a second user activity based on detecting the second user activity associated with user cognition regarding a period for exhalation of the user's breathing. The second user activity may be a user activity independent of the exhalation rather than a user activity caused by the exhalation of the breathing, and a start time point of providing the second sound may be substantially synchronized with a detection time point of the second user activity.

link:

https://patents.google.com/patent/US12515013B2/en?oq=19%2F169%2C587