To improve the quality of your sleep, integrative physician Frank Lipman, MD, recommends a simple yoga pose. Do this pose right before going to bed or if you wake in the night. Lie on your back, arms at your sides, palms up. Close your eyes, relax and lie still, breathing slowly and deeply for five minutes. "This soothes the nervous system and eases mental and physical fatigue," explains Dr. Lipman, author of Revive: Stop Feeling Spent And Start Living Again. "You'll sleep soundly…and wake up rejuvenated."

For other doctor-tested ways to get your Zzzzs (they work!):

• The 15-Minute Secret to Sleeping Better (Boost Energy and Mood, Too)
• Drink This to Sleep Soundly
• Natural Sleep Remedies
• Can’t Sleep? A Pill Is Not the Answer

They could be anywhere around your home, especially in your bed, pillows and upholstered furniture—and you might not know it. These microscopic eight-legged creatures feed on skin shed by humans. Many people who are prone to dust mite allergies find that as soon as they cover their beds—including mattress, box spring and pillows—with hypoallergenic covers called encasements, they sleep and feel much better. If you have unexplained fatigue, talk to your doctor about whether you might be allergic to dust mites.