Electronic device and method for determining sleep-related information

An electronic device comprising:

• a memory configured to store instructions;
• an RF sensor configured to transmit a Radio Frequency (RF) signal and receive a reflection signal of the RF signal;
• and
• at least one processor coupled to the RF sensor and the memory and configured to execute the stored instructions in order to:
• identify one or more signals indicating a state of a user within the received reflection signal,
• monitor a change in data determined based on the one or more signals according to a time,
• determine that a time point at which the user actually begins sleeping is a first time point at which the monitored change is smaller than a first reference value,
• determine that a time point at which the user intends to sleep is a second time point at which the monitored change is larger than a second reference value,
• determine that a sleep latency of the user is a time interval between the first time point and the second time point, and
• store information on the determined time interval.