The most common reason why you can't sleep is also the most obvious: you are not tired. Your desire to sleep will be greatly diminished if you are trying to sleep at the wrong time. Imagine lying down three hours before your normal bedtime. The chance of you being able to fall right to sleep is pretty slim. This has to do with the circadian rhythm of our bodies. This system helps to coordinate our activities, including our desire for food and sleep, to the external environment. Problems with the timing of sleep may occur in the circadian rhythm sleep disorders, as well as in temporary conditions like jet lag.
Create the right sleeping environment. Studies show that people sleep best in a dark room that is slightly on the cool side. Close your blinds or curtains (and make sure they're heavy enough to block out light) and turn down the thermostat (pile on extra blankets or wear PJs if you're cold). Lots of noise can be a sleep turnoff, too. Use a nature sounds or white-noise machine (or app!) if you need to block out a noisy environment.
When figuring out how much sleep you need, it’s important to know your sleep debt as well as your basal sleep need. Many people assume that if they lose an hour of sleep, they just need to get an extra hour of sleep the next night; however, you also have to make up for the extra hour that you were awake and your increased activity during this time. Using your basal sleep need as a foundation, you can determine your sleep debt and adjust it based on how tired you feel or how much extra sleep you think you need.
Exercising in the morning may help you sleep better than working out in the afternoon or evening. In an unpublished study presented at the 58th meeting of the American College of Sports Medicine, researchers at Appalachian State University in Boone, North Carolina, found that people spent 85 percent more time in light sleep and 75 percent more time in deep sleep when they worked out at 7 a.m. compared with working out later in the day. The authors aren’t sure why, but they believe early-bird workouts affect levels of stress hormones in a way that leads to better sleep quality later on. More research is needed to confirm these finding.
Sleep medications, which are most useful for short-term sleeplessness, do require some caution, because they can result in hangovers the next day, or, even worse, lead you to eat, amble about, and even drive while asleep, with no memory of having eaten, ambled about, or driven. The FDA suggests that if you take Ambien, in particular, and at certain dosages, you shouldn’t drive the next day, or take part in other activities that necessitate your being completely awake, because the drug can remain in your system at levels that may affect your functioning.
2. Minimize noise, light, and temperature extremes during sleep with ear plugs, window blinds, or an electric blanket or air conditioner. Even the slightest nighttime noises or luminescent lights can disrupt the quality of your sleep. Try to keep your bedroom at a comfortable temperature -- not too hot (above 75 degrees) or too cold (below 54 degrees).
Avoid electronics in and before bed: Don’t watch television, play on your phone, or use your laptop in bed; even reading in bed should be discouraged. The blue light from your screens emit short-wavelength light that stops the production of melatonin and makes you feel more alert- which is great for the morning, but not so ideal when you’re trying to fall asleep. Also, the more time you spend awake in bed, the harder it is for your body to associate your bed with sleep.
Valerian. Like chamomile tea, folk practitioners have turned to the root of this flowering plant to easy anxiety and promote relaxation. And it works: According to a review of sixteen studies, valerian root is shown to help people doze off faster and sleep more soundly. It might not be ideal for long-term use, though, so talk with your doctor before starting a valerian regimen.
Invest in really comfy bedding. This is just common sense — if it feels really good to climb in bed at night, you’ll look forward to it. A quality mattress that suits your sleeping style, along with supportive pillows and soft, breathable bed linens, can mean the difference between tossing and turning and drifting off as soon as your head hits the pillow.