The purpose of this research study is to see if we can help parents to get their children to go to bed earlier. This may help children to improve their sleep. The study will use a web-based study platform and an activity monitor.

Inclusion Criteria:

1. Males or females age 10 to 12 years.
2. Speak, read and write in English.
3. Parental/guardian permission (informed consent) and child assent.
4. Have a computer or a tablet computer with access to the Internet, or own a smartphone with a data and text plan.
5. Typically spend 8-9 hours in bed at night (e.g. 8 hour time in bed: go to bed at 10pm & get out of bed at 6am).

Exclusion Criteria:

1. Any clinically diagnosed sleep disorder (e.g. sleep apnea).
2. Syndromic obesity.
3. Diagnosed with a psychiatric disorder [e.g. Attention-deficit/hyperactivity disorder (ADHD), depression, anxiety].
4. Diagnosed with an eating disorder.
5. Musculoskeletal or neurological disorder that limits physical movement and activity.
6. Use of medications (prescription or otherwise) known to affect body weight and/or sleep.