Last updated: August 15, 2026 · 7 min read 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.