According to Fortune, new data shows the increasing likelihood of people using their smartphones before bed or in the middle of the night, which can greatly impact sleep.

If you wake up in the middle of the night to check your phone, you’re not alone. But it may be why you can’t get a good night’s sleep.

A new study from consultancy Deloitte found that one in three people checks their smartphones in the middle of the night. The study, which surveyed 4,000 people in the U.K., found that most people are checking the time, responding to instant messages, reading the news, looking at social media notifications, or even replying to work email.

And the younger users are, the more likely they are to check: 50% of smartphone owners aged 18-24 checked their devices in the middle of the night, compared with 14% of owners aged 65 or older.

If users don’t wake up to check their texts, they take time to scroll through their notifications right before bed. Ten percent of users also like to check their smartphone first thing in the morning, according to the study.

Get the full story at www.fortune.com