Walk or cycle to work.

Walking or cycling to work or school is a smart way to get some extra daily exercise while taking advantage of the morning light. If you don't want to or can't walk the whole distance, you could park your car a short distance away (where it may also be cheaper to park). If you use public transport, you can get off one or more stops from your final destination.
 

WHY IT HELPS:
Daylight is one of the most important keys to better sleep habits and circadian rhythm. Combined with eating and exercising at the right times, you create a good foundation for long-term sleep health. Even a short morning walk provides energy, which lowers cortisol levels and reduces the need for stimulants such as coffee. The more you can reduce your intake of caffeine and other stimulants, the better your chances of sleeping well at night.