How to Stop Racing Thoughts at Night: A Practical Guide

It's 11:47 PM. You're lying in bed, eyes closed, doing everything right. But your brain has other plans. Tomorrow's to-do list starts scrolling. That email you forgot to send. The thing your coworker said on Tuesday that you're still not sure how to interpret. And for some reason, that awkward thing you said at a party three years ago.

If this sounds familiar, you're dealing with what researchers call pre-sleep cognitive arousal. It's one of the strongest predictors of insomnia. Allison Harvey, a clinical psychologist at UC Berkeley, published a cognitive model of insomnia in Behaviour Research and Therapy in 2002 that explains exactly why this happens. The core idea: worrying about sleep creates its own vicious cycle. You can't sleep because you're thinking too much. Then you start worrying about not sleeping. Which makes it even harder to sleep.

The good news is that this cycle can be broken. Not with willpower or “just relax” advice, but with specific, evidence-based techniques.

Why your brain does this

During the day, your attention is pulled in a hundred directions. Work, conversations, your phone, traffic. There's always something external to focus on. But at night, those distractions disappear. And your brain fills the silence.

Neuroscience research helps explain why. Buckner, Andrews-Hanna, and Schacter published a paper in the Annals of the New York Academy of Sciences in 2008 describing the brain's default mode network (DMN). This is a network of brain regions that becomes more active when you're not focused on external tasks. The DMN is associated with self-referential thought, mind-wandering, and mental time travel. Thinking about the past. Simulating the future.

For most people, this is just background noise. For overthinkers, it becomes a loud, looping broadcast of worries and regrets. Bedtime is when the DMN has the stage entirely to itself. No wonder your brain picks that moment to go through every unresolved problem in your life.

The worry-sleep cycle

Here's the pattern. You lie down. Worries surface. You try to push them away. They push back harder. Now you're frustrated. You check the time. You calculate how many hours of sleep you'll get “if I fall asleep right now.” That calculation itself generates more anxiety. And the cycle tightens.

You worry, so you can't sleep. You can't sleep, so you worry about not sleeping. This is Harvey's cognitive model of insomnia in action. The worry about sleep becomes its own source of sleeplessness.

We wrote more about this feedback loop in our post on why you can't sleep when your mind won't stop. If you recognize yourself in this pattern, that article covers the research behind why poor sleep and overthinking reinforce each other.

6 evidence-based techniques to quiet your mind at night

These aren't random tips. Each of these has research or clinical evidence supporting it.

1. Write it down and park it

This one has solid experimental evidence behind it. Scullin and colleagues published a study in the Journal of Experimental Psychology: General in 2018 comparing two groups of people. One group spent five minutes before bed writing a to-do list of things they needed to do in the coming days. The other group wrote about tasks they had already completed. The to-do list group fell asleep significantly faster.

The mechanism makes sense. When worries live only in your head, your brain treats them as open loops that need constant monitoring. Writing them down signals that they've been captured. You're not forgetting them. You're just parking them until morning.

Our Sleep Worry Journal tool is built around this exact principle. It gives you a structured way to offload your thoughts before bed so they stop circling in your head.

2. The cognitive shuffle

This technique was developed by Luc Beaudoin, a cognitive scientist at Simon Fraser University. The idea is simple. Think of a random letter. Then picture a series of unrelated objects that start with that letter. A banana. A brick. A butterfly. A bathtub.

Why does this work? Your racing thoughts follow a narrative thread. Worry leads to worry leads to more worry. The cognitive shuffle breaks that thread by occupying your verbal mind with random, non-threatening imagery. You can't maintain a coherent worry spiral while simultaneously picturing a cow wearing a top hat. Your brain has to choose one or the other.

3. Stimulus control

This comes from CBT-I (Cognitive Behavioral Therapy for Insomnia), the gold standard treatment for chronic insomnia. The rule is straightforward: only use your bed for sleep. If you've been lying awake for roughly 15 to 20 minutes, get up. Go to another room. Do something quiet and boring in dim light. Read something unexciting. Only go back to bed when you actually feel sleepy.

It sounds counterintuitive. But the goal is to rebuild the association between your bed and sleep, rather than your bed and frustration. Over time, your brain starts to treat the bed as a cue for drowsiness instead of a cue for worry.

4. Progressive muscle relaxation

Start at your toes. Tense them for five seconds. Then release. Move to your calves. Tense. Release. Work your way up through your thighs, stomach, chest, hands, arms, shoulders, and face.

This technique works by redirecting your attention from mental content to physical sensation. It's hard to ruminate about tomorrow's meeting while you're focused on the tension in your left hand. Progressive muscle relaxation also triggers the parasympathetic nervous system, which is the body's “rest and digest” mode.

You don't need to do all six of these. Pick one or two that feel manageable. Consistency matters more than quantity.

5. Scheduled worry time

This one sounds almost too simple, but it works. Set aside 15 minutes earlier in the evening. Not at bedtime. Sit down with a notebook and write out everything that's on your mind. Worries, plans, things you need to remember, unresolved problems. Get it all out.

Then close the notebook. When those thoughts pop up at bedtime (and they will), remind yourself: “I already dealt with that during worry time. It's written down. It'll be there in the morning.” This gives your brain a reason to let go. The worries have been acknowledged, not ignored.

6. Limit screens before bed

You've heard the blue light argument. But that's only part of it, and honestly, it's the smaller part. The bigger issue is what you're doing on your screen. Scrolling through social media or news before bed gives your brain fresh material to process. New things to react to, compare yourself to, worry about. You're essentially loading your mind with stimulation right before asking it to shut down.

Try replacing the last 30 minutes of screen time with something that doesn't generate new thoughts. A physical book. A boring podcast. Stretching. Anything that lets your mind start winding down instead of ramping up.

When to seek help

These techniques can make a real difference. But if racing thoughts are happening most nights and they're significantly impacting your daily life, it's worth talking to a healthcare provider. You don't have to solve this alone.

The American College of Physicians recommends CBT-I (Cognitive Behavioral Therapy for Insomnia) as the first-line treatment for chronic insomnia in adults. This recommendation was published in the Annals of Internal Medicine in 2016. CBT-I is not just “talk therapy about sleep.” It's a structured program that addresses the specific thought patterns and behaviors that keep insomnia going.

If anxiety is driving your sleep problems, it helps to understand how severe your anxiety actually is. Take our free GAD-7 anxiety assessment to get a clearer picture of your levels.

Sleep anxiety is frustrating, but it's also one of the most treatable forms of insomnia. The cycle feels impossible to break from the inside. But with the right tools, it loosens faster than you'd expect.

Sources:

• Harvey, A.G. (2002). A cognitive model of insomnia. Behaviour Research and Therapy, 40(8), 869-893.
• Buckner, R.L., Andrews-Hanna, J.R., & Schacter, D.L. (2008). The brain's default network. Annals of the New York Academy of Sciences, 1124, 1-38.
• Scullin, M.K., Krueger, M.L., Ballard, H.K., Pruett, N., & Bliwise, D.L. (2018). The effects of bedtime writing on difficulty falling asleep. Journal of Experimental Psychology: General, 147(1), 139-146.
• Qaseem, A., et al. (2016). Management of chronic insomnia disorder in adults. Annals of Internal Medicine, 165(2), 125-133.