We’re also working on a sleep calculator age for kids and teenagers since the algorithm is a bit different due to their varying sleep needs. Given these stats, our sleep calculator is best for adults who need up to nine hours of Zzz’s. ( 5) Here’s a rough range of how much sleep we need depending on what stage of life we’re in, so you can use the sleep calculator based on age: (6) When to Wake Up: How Much Sleep Do I Need?Īs we journey through our own cycle of life, our bodies change, and we need different amounts of slumber. The difference between six hours and six hours 30 minutes can be huge you don’t want to wake up in the middle of a cycle. Rather, the key factor is the number of sleep cycles we complete. ( 4) This is why the length of sleep is not what causes us to feel refreshed when we wake up. ( 3) Many scientists recommend going through 4-6 of these waves, which would provide six to nine hours of shut-eye (remember, each cycle is roughly 90-minutes long). Instead, we move from being awake, to stage one, two, three, four, and then three, two, one, before going into REM sleep! This cycle, which we like to think of as more of a “wave,” repeats over the course of the night. Which brings us to how we actually move through the sleep cycle! It’s important to note that each cycle isn’t, well, cyclical. It’s important to remember that we don’t go from being awake to being in REM sleep rather, we must pass through all the stages of NREM first. Even though this stage is the most similar to being awake, it’s the furthest point from wakefulness in terms of the sleep cycle.Blood pressure, heart rate, and breathing all begin to increase This is when, as the name suggests, our eyes dart up and down and all around, and is most likely when dreaming occurs. REM sleep: At the end of our cycle, we actually enter a light stage of sleep. Your blood pressure, heart rate, and breathing are all very low.
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