Related:

• phase: 1. n. The offset of one's waking-sleeping schedule with respect to the standard 24-hour cycle
  a useful concept among people who often work at night and/or according to no fixed schedule....
• phase 1. n. The offset of one's waking-sleeping schedule with respect to the standard 24-hour cycle
  a useful concept among people who often work at night and/or according to no fixed schedule....
• The following appeared in a health magazine. "It has long been believed that getting at least eight hours of sleep a night is good for health.
  But a recent six-year study of adult sleeping habits found that people who reported sleeping eight or more hours a night had a higher rate of certain health problems than did those who reported sleeping seven hours a night....
• You feel like the night before and you haven't been anywhere
• A day without sunshine is like night.