Feel like you’re not getting enough shut-eye? These reasons may be keeping you up at night.

Sleep is essential to your overall health and well-being. How well you sleep can help you fight obesity, heart disease, even mental stress. But many Americans suffer from lack of sleep. In fact, most people average only 6.5 hours a night – falling short of the recommended eight hours for optimal restfulness. If you’re tired of being tired, Huffington Post offers up five things to consider in order to get a better night’s sleep.

  • Light or dark? The less light in your room, the easier it is for your body to know to shut down. Look for curtains or blinds that block light.
  • Are you exercising? Physical activity can impact the quality of sleep. Taking care of your body with exercise can lead to better sleep at night.
  • Is it time for a new mattress? If discomfort is keeping you up at night, your mattress may be to blame. The life expectancy of a mattress is 9-10 years, so you may be due for an upgrade.
  • Are you eating late at night? It’s wise to avoid heavy meals or spicy foods close to bedtime, as they can be hard to digest, disrupting your sleep.
  • Do you lack routine? Establishing a consistent, relaxing bedtime routine can better prepare your mind and body for restful sleep.

By taking a closer look at your environment and routine and making some changes, you can increase how much sleep you get and can improve the quality of your rest. Read on for a comprehensive guide to combating sleep deprivation.