(BPT) - Decades of research verify what anyone who has enjoyed a truly excellent nightâs rest already knows: Sleep is an essential function that allows our body and mind to recharge. The CDC verifies that scrimping on sleep leaves people vulnerable to attention lapses, reduced cognition, delayed reactions and mood shifts. While most people know that getting a good night of sleep is important, what does âgoodâ sleep mean? Itâs not a simple answer. A combination of factors such as sleep length, a consistent bedtime routine, amount of deep sleep and many additional considerations must combine for quality sleep.