For many of us, the day doesn’t truly end until we set our phones down.
We check one last message.
Scroll through social media “for just a few minutes.”
Watch another short video.
Reply to an email.
Read the news.
Before we realize it, an hour has passed—and while our minds may feel occupied, our bodies haven’t actually begun preparing for sleep.
Although smartphones have become indispensable parts of daily life, they can also interfere with the natural processes that help us fall asleep and stay asleep.
One of the biggest reasons is light.
The screens on phones, tablets, and other electronic devices emit light that can suppress the release of melatonin, the hormone that helps regulate the body’s sleep-wake cycle. While blue wavelengths have received the most attention, bright light from screens in general—especially when viewed close to bedtime—can signal to the brain that it’s still time to be awake.
As a result, you may find yourself lying in bed longer before falling asleep or getting less restful sleep throughout the night.
But the screen itself isn’t the only issue.
What you’re doing on your phone matters, too.
Reading a stressful email, following breaking news, engaging in heated conversations, or endlessly scrolling through social media can leave your mind mentally stimulated when it should be winding down. Even entertaining content can keep the brain engaged far longer than intended, making it harder to transition into a relaxed state.
Notifications add another layer of disruption.
A vibration, alert, or flashing screen can interrupt sleep even if you don’t fully wake up. Over time, these repeated disturbances may reduce sleep quality, leaving you feeling less refreshed the next morning.
The effects of poor sleep often extend far beyond feeling tired.
After several nights of inadequate or disrupted sleep, many people notice they have more difficulty concentrating, remembering information, or making decisions. Tasks that once felt routine may seem unusually demanding, and patience can wear thin more quickly.
Mood is closely connected to sleep as well.
Insufficient sleep has been linked to increased irritability, emotional reactivity, and difficulty managing stress. Small frustrations may feel much larger than they normally would, and maintaining motivation can become more challenging.
Sleep also plays an important role in physical health.
During healthy sleep, the body supports immune function, repairs tissues, regulates hormones, and consolidates memories. Regularly missing quality sleep has been associated with an increased risk of a variety of health concerns over time, including metabolic and cardiovascular problems.
Late-night screen use may also influence eating habits.
When people stay awake longer or sleep too little, hormones involved in hunger and fullness can shift, making high-calorie, sugary, or salty foods more appealing the following day. While many factors affect appetite, poor sleep is one piece of the puzzle.
Fortunately, improving sleep doesn’t necessarily require giving up your phone altogether.
Small changes can make a meaningful difference.
Try putting your phone away 30 to 60 minutes before bedtime whenever possible. If you use it as an alarm clock, consider placing it across the room rather than beside your pillow. Better yet, use a traditional alarm clock and keep your phone outside the bedroom if that fits your routine.
Turning on “Do Not Disturb” mode, silencing nonessential notifications, and reducing screen brightness in the evening can also help limit unnecessary disruptions.
Replacing screen time with relaxing activities may make it easier for your mind to settle.
Reading a printed book, listening to calming music or an audiobook, practicing gentle stretching, journaling, or spending a few quiet minutes in meditation or prayer can all become healthy signals that it’s time to sleep.
The goal isn’t perfection.
Most people will occasionally check a message before bed or stay up later than planned.
What matters is building habits that support consistent, restorative sleep over time.
Your bedroom should be a place where your mind and body associate the environment with rest—not endless updates, notifications, and unfinished tasks.
Sometimes the simplest change is also one of the most effective.
Moving your phone a little farther away.
Giving yourself permission to disconnect.
Creating a few quiet moments before closing your eyes.
Those small choices can help your brain shift from stimulation to relaxation, allowing your body to do what it was designed to do all along: rest, recover, and prepare for the day ahead.
A good night’s sleep isn’t just about how many hours you spend in bed.
It’s about giving yourself the opportunity to truly sleep—and sometimes that opportunity begins with putting the phone down.
