Please choose the correct ending to complete the given sentence: Health: [header] How to get quality sleep [title] Establish a regular bedtime and wake up time. [step] You will sleep the most soundly if you go to bed and wake up around the same times every day. This rhythm helps your body prepare for sleep.

Ending1: If you tend to get up and go to work feeling refreshed and alert in the morning, you can regain that energy by getting eight or nine hours of sleep each night. [substeps] Set your sleep schedule to reflect on bed time and waking up when you go to bed. Ending2: Work, children, and other demands on your time may determine your rhythm. [substeps] Many sleepers, especially night owls, may be tempted to sleep in longer on weekends. Ending3: A consistent sleep schedule and an otherwise normal sleep cycle should help you get good quality sleep. [substeps] If you usually go to bed earlier each night, set aside a certain amount of time in which to turn off your clock. Ending4: Most people can wake up and go to bed the same morning, despite not waking up the same nights. Avoid forcing a regular sleep schedule in order to ensure that you cannot feel groggy and tired in the morning.

Answer format: ending1/ending2/ending3/ending4