Relationship Between Sleep Quality, Sleep Duration, Heart Rate, and Step Number

Primary outcomes

1. Sleep quality

   Time frame: 1 day

   The Pittsburgh Sleep Quality Index (PSQI) will be used to assess sleep quality. PSQI is a scale that provides information on sleep quality and the type and severity of sleep disturbance in the past week. Turkish validity and reliability were established. In the scale consisting of 24 questions in total, 19 questions are answered by the person, while the other 5 questions are filled by the person's bedmate. 7 sub-dimensions (subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbance, use of sleeping pills, daytime dysfunction) are evaluated with 19 questions answered by the individual. Each item in the scale scores between 0 (no distress)-3 (severe distress). The sum of the scores of the seven subdimensions gives the total PSQI score (between 0-21). Those with a total score of 5≥ "good sleep", and those with a score of 5< are considered "poor sleep quality".

2. Sleep duration

   Time frame: Single assessment for 1 day

   Sleep time will be evaluated with the Fitbit® Inspire 2 (Fitbit, Inc., San Francisco, California, USA). Individuals will wear a Fitbit® Inspire 2 (Fitbit, Inc., San Francisco, California, USA) on one wrist. During a day, individuals' sleep duration will be recorded. They will be asked to continue with their normal routines, in abnormal cases the measurement will be repeated. Data will be transferred via Bluetooth to smartphones or tablets accessible via the Fitbit App. Individuals' privacy will be protected by downloading the Fitbit app only to the principal investigator's device and creating separate accounts, one for each Fitbit device, without providing personal information.

3. Nottingham Health Profile

   Time frame: 1 day

   The Nottingham Health Profile (NHP) will be used to assess quality of life. The NHP is a general quality of life questionnaire that measures the perceived health problems and the extent to which these problems affect normal daily activities. The questionnaire consists of 38 items. Questions are answered as 'yes' or 'no'. The questionnaire assesses six parameters related to health status. These parameters are; pain (8 items), physical activity (8 items), energy (3 items), sleep (5 items), social isolation (5 items), emotional reactions (9 items). Each subparameter is scored between 0-100. 0 indicates best health, 100 indicates worst health. The total NHP score is derived from the sum of the subscores.

4. Heart rate

   Time frame: 1 day

   Heart rate count will be evaluated with the Fitbit® Inspire 2 (Fitbit, Inc., San Francisco, California, USA). Individuals will wear a Fitbit® Inspire 2 (Fitbit, Inc., San Francisco, California, USA) on one wrist. During a day, individuals' heart rate will be recorded. They will be asked to continue with their normal routines, in abnormal cases the measurement will be repeated. Data will be transferred via Bluetooth to smartphones or tablets accessible via the Fitbit App. Individuals' privacy will be protected by downloading the Fitbit app only to the principal investigator's device and creating separate accounts, one for each Fitbit device, without providing personal information.

5. Step count

   Time frame: 1 day

   Step count will be evaluated with the Fitbit® Inspire 2 (Fitbit, Inc., San Francisco, California, USA). Individuals will wear a Fitbit® Inspire 2 (Fitbit, Inc., San Francisco, California, USA) on one wrist. During a day, individuals' step count will be recorded. They will be asked to continue with their normal routines, in abnormal cases the measurement will be repeated. Data will be transferred via Bluetooth to smartphones or tablets accessible via the Fitbit App. Individuals' privacy will be protected by downloading the Fitbit app only to the principal investigator's device and creating separate accounts, one for each Fitbit device, without providing personal information.