How Lack Of Sleep Can Affect Your Relationship Sleep is an essential aspect of our overall well-being. It is not only vital for our physical health, but it also plays a significant role in our mental and emotional health. In a romantic relationship, the quality and quantity of sleep can affect the dynamics of the relationship. Lack of sleep can lead to irritability, mood swings, and decreased productivity. In this article, we will discuss the effects of sleep deprivation on romantic relationships and how to overcome them.