Your boss yelled at you today, and it wasn’t even your fault. You had an awful commute and it took you almost two times longer than normal to get home. You just found out that they canceled your favorite television show. Whatever the reason, you are in a bad mood. And now you can’t sleep. The next morning, because you didn’t sleep well that night, you aren’t in a good mood. You know from experience there is definitely a correlation between your mood and your sleep.
Sleep deprivation, whether slight or significant, makes a person more prone to be angry and irritable. You may experience feelings of frustration or sadness when you don’t sleep well, and you may even feel stressed out. Experiencing depression due to lack of sleep is also not uncommon. In fact, one of the first visible symptoms of depression is often difficulty sleeping. It doesn’t help that going to bed angry can cause stress and/or anxiety which will often keep you awake.