Nothing feels better than a good night’s sleep. Getting just the right amount of restful sleep can improve your judgment, your productivity levels and even put you in a better mood. But a lack of sleep can result in daytime sleepiness, lower performance levels and even irritability. Studies show that may only be the tip of the proverbial iceberg. There is a growing consensus among the medical community that lack of sleep, or disturbed sleep, left untreated on a regular basis can lead to heart disease, respiratory conditions, high blood pressure, diabetes and even neurological disorders. It may also put patients at a risk of premature death.