Always overthinking at night? 6 science-backed ways to stop and go back to sleep

As I write this, I'm on my third coffee of the morning after a supremely unsatisfying night's sleep. 

Despite my best efforts - early night, avoiding screens in bed, no booze - I found that rather than drifting into a peaceful slumber, my brain was buzzing all night. 

It's kind of expected when there's a pressing work deadline or personal life stress, but almost more annoying when it's just something your mind decides to treat you to randomly, even when everything feels okay. 

Whatever is causing it, nighttime overthinking (known as Sleep Onset Latency) is pretty much a universal human experience. There's a helluva lot to worry about and analyse in life, and when you lie down and remove all the day's distractions - screens, socialising, work and other tasks - psychology tells us your brain suddenly shifts inwards to process any 'unfinished business'. 

As the minutes tick by and you feel like you're getting further from sleep and closer to your morning alarm, anxiety sets in. It's so tempting to reach for your phone or chuck on the TV, but you don't need me to tell you that's only going to keep you awake longer (I confirmed this for myself last night).

So today, fuelled by caffeine and frustration, I did a bit of research on ways to quiet your mind and grind those racing thoughts to a halt - don't take my word for it though, these are all backed by science.          

1. The 'Worry Dump' (Scheduled Worrying)

Writing down your stressors physically offloads the cognitive load from your brain. A study published in the Journal of Experimental Psychology found that people who spent five minutes writing a 'To-Do' list for the next day fell asleep significantly faster than those who wrote about completed tasks.

• How to do it: Keep a notebook by your bed. Before lying down, write out everything you’re worried about or need to do tomorrow.

2. Cognitive Shuffling

This is a mental exercise designed to scramble your thoughts, making it impossible for your brain to engage in that pesky 'problem-solving' mode that keeps you up but doesn't really achieve anything. By visualising random, non-threatening images, you mimic the fragmented thoughts that occur naturally right before you fall asleep.

• How to do it: Pick a word like 'BEDTIME'. For each letter, visualise as many objects as possible starting with that letter (B: ball, bear, banana; E: egg, elephant, eagle) until you get bored, then move to the next letter.

3. Use Progressive Muscle Relaxation (PMR)

Overthinking is often accompanied by physical tension - you might notice your jaw clenched, your arms folded, or your feet flexed. PMR works on the idea that physical relaxation leads to mental calmness. Research indicates that PMR reduces cortisol levels and decreases the time it takes to fall asleep by lowering the body's overall arousal state.

• How to do it: Tense each muscle group (starting from toes and moving to the face) for five seconds, then release suddenly and feel the tension 'melt'.

4. Paradoxical Intention

It sounds counterintuitive, but trying not to think actually makes you think more. Some studies suggest that if you lie in bed and try to stay awake as long as possible, it reduces the performance anxiety associated with 'trying' to sleep, which in turn stops the racing thoughts.

• How to do it: Lie in the dark with your eyes open. Tell yourself, "I am just going to stay awake for another five minutes." By removing the pressure to sleep, the mind often settles.

5. The 15-Minute Rule

If you lie in bed overthinking for more than 20 minutes, your brain begins to associate the bed with anxiety and wakefulness rather than rest. This is a core concept of Cognitive Behavioural Therapy for Insomnia (CBT-I), which is the gold standard for sleep treatment.

• How to do it: If you can’t stop thinking, get out of bed. Go to a different room with dim lighting and do a 'low-arousal' activity (like folding socks or reading a boring book) until you feel sleepy, then return to bed.

6. The 4-7-8 Breathing Technique

This technique is based on pranayama (yogic breathing) and is designed to activate the parasympathetic nervous system (the 'rest and digest' system) and suppress the sympathetic nervous system (the 'fight or flight' system). The idea is you give the 'overthinking' part of your brain a simple task while physically slowing your heart rate.

• How to do it: Inhale through your nose for four seconds, hold your breath for seven seconds, and exhale forcefully through your mouth for eight seconds. Repeat four times.