You're lying in bed, completely exhausted — and sleep just won't come. Your mind keeps running. The harder you try to stop thinking, the more alert you feel. Sound familiar? For a lot of people, the problem isn't insomnia in the clinical sense. It's the habits that happen in the hours before bed, often without much conscious thought. The good news: most of them are surprisingly easy to change. Here are seven of the most common ones, and what you can do about each.

1. Drinking caffeine too late in the day

Caffeine stays in your system longer than most people realize. It takes quite a while for your body to clear even half of it — which means a coffee in the late afternoon or evening can still be working in your system by the time you try to sleep. Even if you manage to doze off, the quality of that sleep may be lighter than it should be. You wake up feeling like you barely rested, and the cycle starts again.

The fix: Try cutting off caffeine by early-to-mid afternoon. Swap the late coffee for herbal tea or water. Don't forget that cola, energy drinks, and even green tea and black tea contain caffeine too — it adds up.

2. Scrolling your phone right up until sleep

The bright screen on your phone or tablet can signal to your brain that it's still daytime. The light emitted by these screens is thought to interfere with the hormone that helps you feel sleepy, making it harder to fall asleep and potentially reducing the restorative quality of the sleep you do get. If you find yourself feeling tired but weirdly wide-awake in bed, the phone in your hand is often the first thing worth looking at.

The fix: Put the phone down at least 30 minutes before you want to fall asleep. Leaving your charger in another room helps make this easier — out of sight, out of habit. Replace the scrolling time with something quieter: a few pages of a book, some light stretching, or just sitting in the dark for a few minutes.

3. Going to bed and waking up at different times every day

Your body runs on an internal clock — a roughly 24-hour rhythm that regulates when you feel alert and when you feel sleepy. When you stay up late on weekends and sleep in, then try to get back on schedule Sunday night, your body clock hasn't adjusted. It's a bit like giving yourself a mild case of jet lag every single week. You can feel this on Monday mornings — groggy, slow, and wondering why eight hours wasn't enough.

The fix: Try to wake up at roughly the same time every day, even on weekends. A consistent wake time is actually the easier entry point — it tends to pull your bedtime into a more natural rhythm too. Getting a few minutes of natural light soon after waking can help anchor the clock.

4. Eating a heavy meal close to bedtime

A large or rich meal before bed keeps your digestive system active, which can make it harder for your body to fully wind down for sleep. Greasy or spicy food in particular can cause discomfort that surfaces once you lie flat — exactly the wrong time. The opposite extreme, going to bed very hungry, also makes sleep harder, but overeating tends to be the more common culprit.

The fix: Try to finish dinner at least two to three hours before you plan to sleep. If you're genuinely hungry late in the evening, a small, easy-to-digest snack is fine. The goal is to reach your pillow neither stuffed nor starving — just neutral.

5. Doomscrolling before sleep

Ending the day by going through news feeds and social media has become almost reflexive for most people. The problem is that anxious, outrage-inducing, or emotionally loaded content tends to keep your brain in a heightened, alert state — the exact opposite of where it needs to be when you're trying to drift off. The content sticks with you in a way that lighter evening activities don't. You close the app, but your mind is still in it.

The fix: Try setting a soft boundary around news and social media in the hour before bed. It doesn't need to be a strict rule — just a general shift toward quieter activities. Reading a book, journaling, listening to music you enjoy, or even just lying quietly with no screen at all work far better than doomscrolling as pre-sleep rituals.

6. A bedroom that's too warm or too bright

As you fall asleep, your body temperature naturally drops slightly. A room that's too warm can interfere with that process, making it harder to fall asleep initially and easier to wake during the night. Light has a similar effect — even low-level light from street lamps coming through thin curtains can affect sleep quality more than most people expect. The bedroom environment is quietly doing a lot of work.

The fix: Keep your bedroom on the cooler side. Blackout curtains or blinds are a straightforward upgrade that many people find genuinely transforms their sleep. If that's not an option, a sleep mask is a cheap and effective alternative. Small environmental changes often have a larger effect than they seem like they should.

7. Working or studying in bed

With remote work and flexible schedules more common than ever, working from bed has become a real habit for a lot of people. The downside is that your brain starts to associate your bed with being "on" — alert, productive, task-oriented. Then when you actually lie down to sleep, your brain doesn't automatically switch off. The connection between bed and rest has been weakened. The same applies to studying or doing anything mentally demanding in bed.

The fix: Try to use your bed for sleep only. Do work and study at a desk or in another room. If you genuinely don't have that option, even the small ritual of closing the laptop, leaving the bed for a few minutes, and then returning only to sleep can help send your brain a different signal. The association builds gradually either way — make sure it's building in the right direction.

Fixing even one of these habits can make a noticeable difference. You don't need to overhaul everything at once — pick the one that feels most relevant to you right now and start there. Small adjustments compound into real improvements over time. That said, if sleep problems persist despite genuine effort to change your habits, it's worth talking to a doctor or sleep specialist. Ongoing sleep difficulties can sometimes have underlying causes that go beyond what lifestyle changes alone can address.