Getting good rest and sleeping well keeps us healthy, and can be a challenge for many in this busy age. Scientific research indicates that when we sleep soundly, we are rejuvenated in mind and body and can be at our best during the waking part of the day. On the other hand, a consistent pattern of sleep deprivation often leads to or aggravates serious health problems, including high blood pressure, depression, impaired immune response, and obesity. It is clear that what is at stake is not only whether we feel clear or dull the next day, but our entire well being.
How does a good night’s sleep begin? According to the National Sleep Foundation, the first step is to start out in the dark. Why? The answer has to do with our circadian rhythms. These rhythms are biological cycles that determine some critical bodily functions, including hormone production, cell regeneration, brain wave activity, and patterns of core body temperature. These rhythms revolve between phases of rest and phases of activity. Both phases are influenced by light and dark.
When we are exposed to daylight, the active phase happens. Yet, leaving the light on in our bedroom or the light from the television or our computer also effects our circadian rhythms. In fact, the process is the same anytime we are exposed to light. The light impulse comes in through our eyes (even when they are closed) and travels along nerve pathways and stimulates the parts of our brain that regulate hormones, temperature, etc. When these functions are activated, we feel awake.
The science of sleep shows that when we can control our exposure to light and darkness in our environment, the circadian rhythms are kept in proper balance. When we are exposed to daylight, we feel lively and alert. When there is absence of light, we feel tired and can sleep more easily and more deeply.
Light is a critical factor for your young children and teenagers too because a good night’s sleep directly impacts mental and physical development in growing children. Sleep science tells us that circadian rhythms develop at about six weeks, and by three to six months, most infants have a regular sleep-wake cycle.
Knowing all this, we see that it is important to control our exposure to light and darkness. During the day it is good to spend time in sunlight. Some people even supplement their exposure to natural sunlight through use of a supplemental light system when indoors. When time for bed approaches, we should have a regular routine in place whenever possible. The Chairman of the National Sleep Foundation, Thomas J. Balkin, Ph.D., says, “The hour before bed is an important time to relax and wind-down before going to sleep. For those who are having problems sleeping, it’s a good idea to consider whether your bedtime routines may be too alerting.”
It is best to turn off the computer and the TV an hour before we go to bed, to make sure that the light from either will not have an adverse effect on our sleep. Don’t bring work into the bedroom, it should be a place for rest, not activity. Best to keep the bedroom dark or very dimly lit. If necessary, an eye mask or light blocking curtains can be used to ensure darkness. We can also promote relaxation by gently massaging our neck, hands, and feet just before bedtime. Once lying down in bed in the dark, we can enhance relaxation by taking long, deep, easy breaths, letting body and mind relax.
Other ways we can help ourselves relax before bedtime are by drinking a soothing herbal tea (Chamomile is a good choice) or a cup of warm milk. We can make sure our mattress is comfortable and not an impediment to relaxation. Many people find that special types of mattresses such as memory foam, latex, or air beds can be a great benefit in this.
We all require deep and restful sleep to enjoy our lives and stay healthy. It is well worth taking the time and care to start your night’s sleep in a soothing and restful way, and the benefits of better sleep will follow. Well begun is half done!
For more info on sleep technology and tips for better sleep, go here. Find out more about different types of mattresses, such as the memory foam mattress or latex mattress, here.


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