Sleep restores the body physically and mind mentally and emotionally. You need sleep to ensure that your mind and body operates optimally and your general mood is properly calibrated. An absence of memory recall, mental agility na ka temper temper is usually as a result of premature ejection from the blankets and hunger (in some cases).
Sleep is thought to help keep the immune system strong and the heart and blood vessels healthy. It allows for growth and healing, and helps control appetite and weight. Sleep also promotes creativity, attention, memory and learning.
Sleep has 4 stages, 3 of which are non-REM (rapid eye movement) and the last being REM sleep.
During stage 1, you are transitioning between being awake and asleep, and wake easily. During stage 2 your body temperature and heart rate starts to drop and your muscles relax as you fall into a slightly deeper sleep. During stage 3 you're in deep sleep with your body fully subdued and relaxed. At stage 4 (REM) rapid eye movements begin, your brain's activity increases as well as heart rate and blood pressure and most of your dreaming occurs. Dreams are considered important for learning and creating new memories.
A complete sleep cycle comprises of all 4 stages of sleep with each cycle lasting an average of 90 minutes.
How much sleep do you need?
Most adults need about 8 hours of sleep per night which is roughly 5 sleep cycles. Some people can cope with less but that doesn't make it ideal or optimal. Test different sleeping hours and pay attention to things such as your mood, appetite control, memory and general alertness. Settle for the number of hours where you feel your best without forcing things or playing mind games. Generally speaking and without encouraging laziness, the more sleep cycles you can get in the better.
How can you sleep better?
Do everything you can to level up your sleep game and it'll pay dividends if you stick with it. Your mental sharpness will skyrocket, emotional balance will maintain equilibrium and physical wellbeing will improve.