Why usual and regular bedtime is important

When people don't stick to their usual bedtime

Sleep is very important to our overall health. If we don't sleep enough, this can cause numerous health problems and illnesses. A new study is now trying to find out how regular bedtime affects health. These effects were already significant for our resting heart rate when people only go to bed 30 minutes later than usual.

The University of Notre Dame's recent investigation found that failure to follow normal bedtime conditions had a negative impact on resting heart rate. The results of the study were published in the English-language journal "Digital Medicine".

Is a healthy sleep still possible these days?

Despite the increasing awareness of how important sleep is for our health, many people find it difficult to get enough sleep. One reason for this is the use of smartphones, which means that we can be reached around the clock, respond to social media at any time and are exposed to the blue light of the device.

Lack of sleep leads to illnesses

Lack of sleep is associated with various diseases. If we do not get enough sleep on a regular basis, this is associated with an increased risk in numerous health conditions, including diabetes, stroke and cardiovascular diseases.

How did going to bed affect the resting heart rate later?

The new study is concerned with whether going to bed on time could have an impact on health. To do this, they examined the correlation between the regularity of bedtime and the resting heart rate (RHR). It was found that people who go to bed just 30 minutes later than usual have a significantly higher resting heart rate, which even lasts until the following day.

Higher resting heart rate jeopardizes cardiovascular health

“We already know that an increase in the resting heart rate means an increased risk for cardiovascular health. Through our study, we found that even if you get seven hours of sleep a night, if you don't go to bed at the same time each night, not only will your resting heart rate increase during sleep, but it will carry over to the next day, ”reports Study author Nitesh Chawla from the University of Notre Dame in a press release.

Where did the evaluated data come from?

The research group analyzed data from 557 college students collected over four years. They recorded a total of 255,736 sleep sessions. Significant increases in RHR were observed when people went to bed between one minute and 30 minutes later than their normal bedtime. The later they went to bed, the higher the increase in RHR. The rates remained raised until the following day.

How did previous bedtime affect you?

Surprisingly, going to bed earlier was also associated with signs of an increase in RHR, depending on how early you went to bed. Going to bed 30 minutes earlier than usual seemed to have little effect, while going to bed over half an hour earlier significantly increased the RHR. In earlier bedtime cases, the RHR leveled during sleep.

What affects our sleep?

Circadian rhythms, medication and lifestyle factors all play an important role when it comes to healthy sleeping habits. However, consistency should also be taken into account.

We should keep to regular bedtime

For many people, the regular sleep times differ only in the working week compared to the weekend. For shift workers and people who travel a lot, going to bed at the same time every night is a real challenge. Establishing a healthy bedtime routine is obviously very important for a healthy sleep, but it is just as important to stick to such a routine of regular bedtime. (as)

Author and source information

This text corresponds to the specifications of the medical literature, medical guidelines and current studies and has been checked by medical doctors.


  • Louis Faust, Keith Feldman, Stephen M. Mattingly, David Hachen, Nitesh V. Chawla: Deviations from normal bedtimes are associated with short-term increases in resting heart rate, in Digital Medicine (published Mar 23, 2020), Digital Medicine
  • Past your bedtime? Inconsistency may increase risk to cardiovascular health, University of Notre Dame (Published 24.03.2020), University of Notre Dame

Video: 10 HEALTHY HABITS Before Bedtime (January 2022).