Study Finds Bedtime Procrastination Impacts Sleep Quality

According to the study, putting off bedtime for leisure activities can shorten sleep time, lower sleep quality, and potentially lead to sleep disorders like insomnia. The study defines procrastination as “delay[ing] bedtime in the absence of external obligations.” So putting off bedtime to complete tasks or work is not considered procrastination, but postponing bedtime with unnecessary activities is. 

Researchers performed a 14-day study on 280 undergrad students at a U.S.-based university. Students used daily sleep diaries to record sleep times, time spent asleep compared to total time in bed (efficiency), and the regularity of their sleep schedules. They also noted how restorative their sleep felt and how refreshed they were upon waking. Researchers also used a questionnaire to determine whether or not students had procrastinated before bedtime. 

Using the students’ data, the scientists determined that those who admitted procrastinating at night weren’t as efficient with their sleep, slept fewer hours, and woke up less refreshed. The same individuals reported better sleep quality and length when they didn’t procrastinate. 

While these poor sleep patterns can lead to issues like insomnia, they aren’t necessarily caused by a sleep disorder. Sleep procrastination is a voluntary action. It’s intentionally putting off sleep to do something else instead Trusted Source Science Direct The leading platform of peer-reviewed literature that helps you move your research forward. View Source and it’s behavioral rather than biological. 

Sleep procrastination can be as simple as lying in bed and scrolling on your phone before falling asleep. Even though you’re technically in bed, you’re minimizing your opportunity for sleep. Your internal clock doesn’t procrastinate, and outside obligations will still force you to wake up at the same time, even if you stay up into the wee hours watching dog TikToks. 

The study found that sleep health suffered from procrastination no matter the students’ chronotype. Chronotype is the kind of internal clock your body has and the hours you naturally want to be awake and to rest. According to the results, both “night owls” and “early birds” were equally affected by bedtime procrastination. 

Though the study found clear evidence to suggest that bedtime procrastination raises the risk of poor sleep health, the researchers acknowledge that there are limitations and further study is needed to better understand the connection. The sample size was fairly small and limited to mostly white female college students. The researchers also echo an older study that notes more objective results could be found using sleep-tracking technology instead of relying on self-reporting. Trusted Source Frontiers Frontiers is one of the largest and highest-cited publishers in the world and has information on more than 600 academic disciplines. View Source  

Luckily, we don’t need to wait for more research to stop procrastinating and start getting better sleep. So, if you’re reading this article while in bed, it might be best to just shut off the screen, close your eyes, and start counting sheep.