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  • While short naps might be refreshing, don???t sleep more than 40 minutes, advises Carol Ash, DO, medical director of Sleep for Life in Hillsborough, N.J. Maintain a sleep diary, including information about how well you sleep, how long you sleep, and your sleep habits, in the event you want to talk to a health care provider.
http://www.w3.org/ns/prov#wasQuotedFrom
  • everydayhealth.com