Get the Well Enough newsletter with Harry Bullmore for tips on living a healthier, happier and longer life Get the Well Enough email with Harry Bullmore Get the Well Enough email with Harry Bullmore Not everyone can sleep through rumbling traffic or a spouse’s incessant snoring. If you do, you may pride yourself on being a “deep” or “heavy” sleeper. If you struggle to fall or stay asleep, you may consider yourself a “light” sleeper. But is there such thing as being a light or deep sleeper? And can you change how deeply you sleep? Sleep is a cycle Sleep is not a single, static state. Rather, it’s a cycle that unfolds and repeats across the night, in two main stages. Stage 1: Non-REM sleep Sleep begins with non-rapid eye movement sleep, also known as non-REM sleep. This is made up of three phases, ranging from a first phase of very light sleep, to the deepest and slowest form of sleep in the third phase. Stage 2: REM sleep Rapid eye movement or REM sleep …