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How To Improve Your Sleep and Why You Should with Professor Matthew Walker #147

Jan 13, 2021 1h 39m 23 insights
Improving the quality of our sleep is arguably the single most effective thing that we can do to reset our brains and recharge our bodies, yet many of us just aren’t getting enough. But what is the optimal amount of sleep and what can we do if we struggle to get enough? I’m delighted to welcome back onto the podcast the world-leading sleep researcher, Professor Matthew Walker to answer these questions and more. Matthew is author of the international best-selling book ‘Why We Sleep’, Professor of Neuroscience and Psychology at the University of California and a fountain of knowledge when it comes to all things sleep. My last conversation with Matthew back on episode 70 of the podcast was one of the most popular to date. A few months ago, I asked my podcast listeners to let me know what further questions they would like Matthew to answer and in this conversation, I put some of those questions to him. We cover how many of us feel that we don’t have enough time to sleep for 7-9 hours but how rather than stealing time from us, getting more sleep can actually make us more productive. And even grabbing an extra 15 minutes of sleep a day will have benefits for our overall healthspan. Matthew shares some brilliant tips on how we can regain control of our sleep and for those who are really struggling, he explains that there is an alternative to sleeping pills that is just as effective in the short term, but much more effective long term. We cover so much ground in this conversation, including polyphasic sleep (sleeping for periods of time throughout the day), unbroken sleep and why lying awake in bed for long periods of time can affect our ability to sleep in the future. Matthew shares the fascinating and dramatic changes that have occurred in the way we sleep and dream following the coronavirus pandemic and why it has allowed what he calls “the revenge of the night owls.” We delve into REM sleep and how it is one of the best forms of therapy – the brain can literally re-wire negative memories when we sleep. Finally, we cover sleep trackers, caffeine and how sleep impacts our immunity. This really is a fascinating conversation, full of fresh insights and actionable tips that we can all put into practice today. I hope you enjoy listening. Show notes available at drchatterjee.com/147 Follow me on instagram.com/drchatterjee/ Follow me on facebook.com/DrChatterjee/ Follow me on twitter.com/drchatterjeeuk
Actionable Insights

1. Prioritize 7-9 Hours Sleep

Aim for 7 to 9 hours of sleep per night, as scientific evidence shows that shorter sleep duration predicts a shorter lifespan and negatively impacts overall health and wellness.

2. Allow 8+ Hours In Bed

To achieve a minimum of 7 hours of actual sleep, allocate at least 8 hours and 13 minutes in bed, accounting for normal sleep efficiency (85-95% of time in bed spent asleep).

3. Consult Doctor for Sleep Issues

If you consistently struggle with sleep or suspect a sleep disorder like insomnia, sleep apnea, or heavy snoring, consult a doctor for diagnosis and treatment, as general tips may not be sufficient.

4. Try CBTI for Insomnia

For insomnia, explore Cognitive Behavioral Therapy for Insomnia (CBTI) as a highly effective, long-term alternative to sleeping pills, without the harmful side effects.

5. Incremental Sleep Gains

Start with small, incremental changes to improve sleep, such as going to bed 15 minutes earlier or waking up 5 minutes later, as even 15-20 extra minutes per day can significantly boost health over time.

6. Create Wind-Down Routine

Develop a consistent wind-down routine before bed (e.g., bath, reading, light stretching, meditation) to gradually prepare your brain and body for sleep, as sleep is a gradual physiological process, not a light switch.

7. Set Bedtime Alarm

Set a ’to bed’ alarm to remind yourself to start your wind-down routine, aiming for an 8-hour sleep opportunity, as this persistent notification can help you get to bed earlier.

8. Pre-Bed Prep Hour

An hour before your planned bedtime, complete all pre-sleep tasks like changing into pajamas, brushing teeth, and washing your face, to streamline the process and add 15-20 minutes to your sleep opportunity.

9. Leave Bed If Awake

If you’re awake in bed for more than 25 minutes (trying to fall asleep or get back to sleep), get out of bed, go to another room, and engage in a relaxing activity in dim light (e.g., stretching, meditation, reading) until you feel sleepy, then return to bed.

10. Avoid Evening Alcohol

Refrain from consuming alcohol in the evening, as it fragments sleep, makes it more fragile, and potently suppresses REM sleep, which is vital for emotional processing and memory.

11. Manage Caffeine Wisely

Be mindful of caffeine’s long half-life (5-6 hours) and quarter-life (10-12 hours); cut off caffeine intake by late morning or noon to prevent it from disrupting your sleep quality at night, even if you don’t feel its effects.

12. Decaf for Antioxidants

If caffeine negatively impacts your sleep, consider drinking decaffeinated coffee, as many of coffee’s health benefits come from its rich antioxidant content, not the caffeine itself.

13. Stop Eating Before Bed

Cease all eating, including snacking, two to three hours before bedtime, as consuming food too close to sleep can negatively affect sleep quality, heart rate, and recovery.

14. Choose Healthy Bedtime Snack

If you must have a snack before bed, opt for a high-fiber, high-protein option instead of high-sugar foods, as sugar is thermogenic and can raise core body temperature, disrupting sleep.

15. Optimal Bedroom Temperature

Set your bedroom temperature to approximately 18-18.5 degrees Celsius (65-66 degrees Fahrenheit), as a slight drop in core body temperature is necessary to fall and stay asleep.

16. Ensure Bedroom Darkness

Maintain regularity in your sleep schedule, ensure your bedroom is dark, turn off screens, and dim half the lights in your house before bed to signal to your body it’s time to sleep.

17. Remove Bedroom Clocks

Remove all visible clocks from your bedroom if you struggle with sleep, as checking the time during awakenings can increase anxiety and worsen insomnia.

18. Don’t Count Sheep

Do not attempt to count sheep to fall asleep, as studies have shown this technique can actually worsen sleep.

19. Visualize to Aid Sleep

If anxious thoughts prevent sleep, try a visualization technique: mentally ‘walk’ through a pleasant, familiar scene (e.g., a walk in the woods or on the beach) for 5-10 minutes to distract your mind.

20. No Tech In Bedroom

Strive to keep technology, especially phones, out of the bedroom entirely. If this is too difficult, try to delay touching your phone in the morning until after you’ve completed initial routines.

21. Use Phone Standing Only

If you absolutely must bring your phone into the bedroom, enforce a rule to only use it while standing up; this discourages prolonged use and prompts you to put it away when you want to relax for sleep.

22. Avoid Sleep Tracker Anxiety

If using a sleep tracker causes anxiety or ‘orthosomnia’ (worry about getting sleep right), stop using it, as the increased anxiety will likely worsen your sleep rather than improve it.

23. Insight 23

Recognize that REM sleep acts as ’emotional first aid’ or ‘overnight therapy,’ processing difficult experiences and reducing their emotional charge, which can help you feel better the next day.