All individuals possess what is called 'an internal clock', which has as main purpose to schedule sleep and wakefulness within one entire day of 24 hours.
Now comes the difference in regards to how the 'clock' works for each person: there are people who wake up earlier and go to bed earlier as well - for them the cycle is shorter and there are also people who, on the other hand wake up later and go to sleep later. It all depends, in fact, on what is known as 'zeitgebers', which translates by external signals necessary in order to synchronize the 'clock'.
MORE IDEAS FROM THE ARTICLE
Whenever we undergo a change in our daily schedule, our sleep tends to suffer a bit.
Simple facts such as not waking up and going to bed at the usual hour, not getting enough natural light or making less to no exercise can lead to sleep disorders.
Especially during times of staying only in the house, one needs to make sure that the regular schedule is not too much disturbed, as this can lead, among other issues, to sleep disorders.
A good way to get your normal sleep is by maintaining a regular wake-up and bedtime, even through unusual periods of time. Furthermore, ensuring that your room gets enough natural light, or even better, that you get it, will definitely help. Among other helpful tips there are the fact of giving up on coffee or making as many indoor physical exercises as possible.
There are times, in our life, when we have sleep difficulties for one reason or another.
In order to 'repair' your sleeping disorder, you might want to try whether waking up 15 minutes earlier every couple of days or, on the contrary, going to bed later by two to three hours. However, remember that the most important is to respect and, if possible, give priority to your body preferences. Of course, provided that your working schedule will not be affected.
Long days can leave us tired and exhausted. But, our days would be less hard and exhausting if we weren't so tired through them.
Most night owls have to wake a similar time to other people. It means they are forced to sleep five or six hours instead of sleeping for seven or eight hours. Consequently, they feel tired all the rime.
The second purpose of sleep is memory consolidation.
Sleep is crucial for memory consolidation, which is responsible for your long term memories. Insufficient or fragmented sleep can hamper your ability to remember facts and feelings/emotions.