When is the best bedtime? Of course, all parents ask this question when they are looking for when is the best time to go to bed for themselves also their children. But even adults who regularly have the feeling that they are being woken up from a deep sleep when the alarm clock rings in the morning should ask themselves the question of the ideal bedtime.
Why Does Bedtime Matter At All?
Sleep is essential for all humans and all animals, but they practice it for different lengths of time and sometimes in bizarre ways. In principle, all fish sleep with their eyes open. Because they live in water and don’t need to blink to lubricate their retinas, they simply don’t have the lids needed to close their eyes.
Whales and dolphins, on the other hand, rest both hemispheres of their brain alternately at short intervals in order to be able to continue navigating, reacting to danger and controlling vital functions with the still awake side. Some birds even manage to fall asleep completely while flying, without falling from the sky or losing course.
Length Of Sleep is Differ Each Species
The length of sleep as well as the behavior differ greatly between different species – but a regular rest period for about 6 hours for human is essential in any case. Two independent factors explain why bedtime is almost as important for a person as ideal sleep duration.
First of all, the metabolism, which is geared towards day and night, which is popularly referred to as the “internal clock”, ensures that we get tired at certain times and active at others.
Second aspect is the nocturnal sleep cycle, which occurs several times in one night.
What Role Does The Sleep Cycle Play?
It is not important how many hours of sleep someone gets in a continuous phase of rest, but when they wake up from it. A single cycle is about 90 minutes with just over a quarter of an hour variance up and down. Such a sleep cycle consists of two phases of light sleep, a deep sleep phase and a REM phase, during this sleep phase the brain works actively, the eyes move quickly and sleep stage where you dream occur.
The REM phase occurs after a prolonged period of deep sleep and ends with a light sleep from which the sleeper eventually awakens on their own after a sufficient number of cycles. If this process is disturbed, for example because the alarm clock rings, this has an effect for a long time after waking up.
When Is The Ideal Hour For Bedtime?
The optimal bedtime should meet three basic conditions:
- First, it must be long enough to allow the body to recover adequately.
- Second, it should follow the day-night rhythm.
- Third, the length of the sleep time must be measured in such a way that it does not interrupt the successive sleep cycle, but that the awakening takes place in a light sleep stage.
In theory, these requirements may still sound as if they are relatively easy to fulfill – in practice, considerable problems often arise.
First of all, everyday life has changed drastically due to technical developments – people go to bed later because they no longer need the sun as a source of light. And they get up earlier because the clock controls the daily routine rather than the body.
What Best Time To Wake Up After Sleeping?
In many professions in which shift work is essential, regular sleep at night proves to be impossible anyway. Finding the best time to get out of bed is also difficult. Although a sleeper spends about half of their sleep time in a light sleep stage, REM and deep sleep occur primarily towards the end of a cycle.
Because of the deviation of up to forty minutes for a process, it is also not easy to determine an optimal time for waking up. Regardless of how many hours of sleep someone schedules, if the alarm sounds at an unfavorable phase, the only ideal way to end their sleep time is to complete another interval.