Non-24-Hour Sleep-Wake Rhythm - What is it? If you have Non-24-Hour Sleep-Wake Rhythm, then your sleep times and wake times shift later and later every day, and therefore you are sleeping at a different time every night, later and later, until you are sleeping at very odd times during the day. What causes it? The number [...]
Jet Lag - What is it? If you travel across multiple time zones you may have difficulty adjusting; this difficulty is called jet lag. When you experience jet lag your body’s circadian rhythms are aligned to the previous time zone you were in. Therefore, your body may want to sleep or be awake at the wrong [...]
Shift Work Disorder - What is it? Shift work disorder occurs when you have difficulties adjusting to a work schedule that takes place during a time which most people sleep. When you have shift work disorder, there is a conflict between your body’s circadian rhythms and your work schedule. You may have to be at work [...]
Restless Leg Syndrome (RLS) Fact Sheet - What is it? Restless legs syndrome (RLS) causes you to frequently shift and move your legs due to an uncontrollable urge, usually because of constant tension and uncomfortable, irritating feeling in the legs. Usually, this feeling worsens and intensifies in the evening and nighttime hours and is most [...]
Confusional Arousals - What is it? Confusional arousal is a parasomnia that causes you to wake up feeling very confused and may even cause you to act very unusual and out of the norm for yourself as you are waking up or just after you wake up. You may not know where you are or what [...]
Delayed Sleep-Wake Phase Disorder - What is it? Delayed sleep-wake phase disorder (DSP) is a circadian rhythm disorder where one's sleep pattern is off by two or more hours. They tend to go to sleep two or more hours later than what is considered normal. Consequently, they will also want to wake up at a later [...]
Advanced Sleep-Wake Phase Disorder - What is it? Advanced sleep-wake phase disorder (ASP) is another circadian rhythm disorder similar to DSP except that a person with ASP will naturally want to fall asleep a few hours before what most consider normal bedtime. These people will want to go to bed between 6 P.M. and 9 P.M. [...]
Blue Light Exposure - What is it? The largest source of blue light is sunlight. However, high concentrations of blue wavelength light are also produced by smartphones, tablets, television, high-efficiency light bulbs and other digital devices. During the day, the blue light in sunlight signals our brain that we should be awake, and alert. When the [...]
Bruxism - What is it? Bruxism is the involuntary or habitual gnashing, grinding, or clenching of teeth while you are asleep. If you are experiencing Bruxism, then you are more likely to have other sleep disorders as well, like snoring and sleep apnea. If the Bruxism is mild, there may be no treatment required, but [...]
PLM (Periodic Limb Movements) - What is it? Periodic limb movements are repetitive limb movements that occur during sleep and cause sleep disruption. These episodes of uncontrollable movement usually occur in the lower limbs every 20-40 seconds. The movements are similar to muscle twitches and jerking movements but last longer, and these episodes can last anywhere [...]
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