Bedtime procrastination can cause sleep deprivation. Without enough hours of sleep, the mind and body can’t properly recharge, which can have widespread negative effects on health.

Insufficient sleep degrades thinking, memory, and decision making. Sleep deprivation also raises the risk of daytime sleepiness, which can harm productivity and academic achievement while heightening the risks of drowsy driving.

A lack of sleep is tied to irritability and other difficulties regulating emotions. It’s also been connected to mental health disorders, such as depression and anxiety.

Sleep deprivation worsens physical health, making people more susceptible to cardiovascular problems and metabolic disorders, like diabetes. In addition, and especially concerning in light of COVID-19, insufficient sleep can erode immune function and reduce the effectiveness of vaccines.

The consequences of sleep loss can arise quickly or build up over time, contributing to significant long-term health problems. With sleep procrastination, the effects of sleep deprivation may become even more worrisome. Sleep deprivation has been linked to reduced self-regulation and impulse control, which means that sleep procrastination may become part of a reinforcing negative cycle of reduced sleep and worse overall health.

Sources - https://www.sleepfoundation.org/sleep-hygiene/revenge-bedtime-procrastination