What would you be like if..

So I stayed at a hotel and slept real well and I thought how I'd be a force to be reckoned with if I were to sleep properly every night. So how do you think your life would be changed or improved by doing these three things consistently?:

1. Sleep well and for enough hours every time.
2. Eat well and food that is nutrient rich.
3. Exercise thirty minutes to one hour (A mix of weight lifting and cardio).

Problem is that a lot of people have something in their lives that are making doing these three things inconsistent. But if you could what do you think life would be like?