Walking, jogging, swimming, bicycling, racket sports, and aerobic classes all are effective ways to get your exercise and keep the stress responses at bay. Recent standards suggest that one should aim for 30 minutes of exercise every day, or every other day. It may be practical for you to park your car a little further from your destination, or get off the bus a stop away from your normal stop. The important thing is that you make regular exercise a part of your overall stress management program. We all have our own ideal amount of sleep, and if we don't get it, our performance and resilience suffers.
People generally know their optimum amount of sleep.
The key is to awake feeling refreshed. Most people need about 6-9 hours of sleep per night. Try going to bed a half hour earlier for a week, and see if that increases your energy. If you suffer from insomnia, you may want to avoid napping, since that seems to throw off the body's rhythms and perpetuate insomnia. Allowing yourself adequate sleep can be a powerful part of your stress management program.