And if you don't do your work or go to school, you might feel even more stressed later. What you do in bed matters too. If you spend all your time on your phone, it can make you feel worse.

And as much as you can, keep that area strictly for sleeping. ''Avoid doing work or anything stressful from your bed,'' says Jeff Kahn, co-founder of the Chicago-based sleep-research company Rise ...

A study from the Norwegian Institute of Public Health reveals using screens in bed increases the risk of insomnia by 59% and reduces sleep time by 24 minutes. Excessive screen time disrupts sleep ...