Subconscious stage: usually 0.5~2 hours after falling asleep.
During this time, people's brains begin to sleep, which is their most vulnerable time. If you dream now, you will forget it completely when you wake up, as if you had never dreamed.
2. Sleep stage: usually 2 to 6 hours after falling asleep.
During this time, the brain is recharging, and it is not clear when it will wake up from the dream, but you will remember your dream soon, because it will take some time for the reflex arc of the cerebral cortex to recover.
Semi-awake stage: 6-8 hours after falling asleep.
At this time, the human body is the time when the subconscious recovers, and many people sleepwalk back at this time.
4. Cage culture stage: 8~N hours.
Haha, if you are an office worker, don't expect to sleep in a cage. Ha ha!