Are you envious of your bed partner, who drifts off to sleep quickly while you toss and turn? Do you find yourself lying awake at night, despite your best efforts to fall asleep? You aren't alone. Insomnia is a common condition that steals precious sleep from those who need it, and a lack of sleep can have a serious impact on your health, including weight gain.

The first step in treating insomnia is identifying the cause. Forbes has an excellent gallery to help you do just that. Their 14 reasons you aren't sleeping covers topics like:

• relationship trouble
• co-sleeping with children
• pregnancy
• being a woman
• medications
• sleep disorders
• stress
• poor sleeping habits or environment
• worry
• age
• heart disease
• depression
  

If this sounds like you, you might already be on your road to recovery. Try and make some lifestyle or environmental adjustments, and if that doesn't work, speak to your doctor to see if your health may be part of the cause. While you're at it, visit AOL Health to see what they're saying about sleep.