D&C 88:124

An important part of balancing our lives is getting enough sleep. This scripture teaches us this principle. 

D&C 88:124- "...cease to ^dsleep longer than is needful; retire to thy bed early, that ye may not be weary; arise early, that your bodies and your minds may be ^einvigorated.

If I get enough sleep at night, then I will have enough energy to get the things I need to done during the day.