Unless you're: A) under the age of two; B) in high school; or C) eligible for an AARP card, naps are not usually considered socially acceptable. And anyway, who has the chance to nap? Most of us spend our afternoons in an office, running errands or doing something else that's productive.

But a nap, even a quick one, can really help restore alertness and improve your mood, so don't feel guilty about taking one. Divine Caroline has seven tips for napping effectively. Here are a couple:

• Don't sleep longer than 45 minutes. After this amount of time, you'll be drifting into deep sleep and will feel groggy when you wake up.
  
• Find a place to lie down -- it takes longer to fall asleep sitting up.
• Don't nap too close to bedtime -- you'll be lying awake when it's time to hit the sack.
  

Want more tips? Read the full article here.