The Importance of a Good Night’s Sleep When you have poor sleep, the brain complains to the HR. You may be irritable, moody, forgetful, emotional, or even feel that everybody is plotting against you (they may not be). With time, chronic sleeplessness leaves you susceptible to various unwanted visitors: hypertension, diabetes, obesity, and cardiovascular disease. Therefore, it is well worth the effort to pursue good quality, consistent sleep. The future you will be will be glad. Here are some reasons why you have poor sleep, and you keep waking up at night, resulting in less sleep and poorer quality sleep.  Sleep Apnea Sleep apnea results in a series of interruptions in the breathing system, which wakes you out of sleep (although you might not even recall it). The following day, you may be foggy, irritable, or tired. Although excess weight is a widely recognized reason, it is not the only cause. A physician is capable of diagnosing sleep apnea and prescribing interventions suc...