Science says regular, good quality sleep can add up to four years to your life — these are the hacks I swear by to fall asleep at the same time every night

I’ve written about sleep for almost two years now, spending my time interviewing experts and testing out trending new hacks to keep my sleep quality high. The single most important thing I’ve learned is that consistency is key.

This means going to bed and waking up at roughly the same time every day. It sounds simple, but putting it into practise can be more difficult, especially when you’re juggling a busy social life, career and other daily demands on your time.

But now I’ve cracked the code to naturally falling asleep at 11pm and waking at 7.30am — so much so, I no longer need an alarm. Here are the hacks that actually help me fall asleep at the same time every night.

Key takeaways

• A landmark study by Vitality and The London School of Economics and Political Science (LSE) published earlier this year shows that keeping a regular bedtime, as well as getting 7+ hours of sleep, has been proven to add up to four years to your average lifespan
• I’ve tried just about every sleep hack you can think of to try to keep a regular sleep schedule
• Now I go to bed and wake up naturally at the same time every day and have more energy than ever
• Experts weigh in on the three hacks that help me do this, including the 10-3-2-1-0 rule, having a warm bath and anchoring my wake time

The link between a regular bedtime and a longer life

A huge new sleep study published earlier this year has revealed two key rules that can increase life expectancy.

After 47 million nights of sleep data were analysed alongside health and wellness data, socio-economic data and insurance claims data, the science found that the 7:1 rule can add up to four years to the average life span.

This rule refers to getting at least seven hours of sleep a night, at least five times a week, while going to sleep within the same one-hour window every day.

This means your sleep schedule remains consistent, only varying by a maximum of one hour each day.

Dr. Katie Tryon, Deputy CEO at Vitality, the company behind the research, says that “sleep regularity and consistency” are more important than getting “seven, eight hours of sleep per night.”

And it’s not the only study of its kind. A 2024 study found that sleep regularity is a way to improve general wellbeing. More importantly, it's actually a stronger indicator of health and survival than sleep duration.

The reason regularity is so essential when it comes to our health is because it helps keep our internal body clock (known as our circadian rhythm) working effectively and efficiently.

This is responsible for releasing key hormones throughout the day that impact everything from our nervous system responses to metabolism to the actual quality of our sleep.

The 3 hacks I use to fall asleep at the same time every night

I’ve managed to hone my sleep schedule, which means without fail, I can fall asleep within 5 minutes night after night at the same time. Now, I wake with energy and sleep through the night. But it hasn’t always been that easy.

In fact, it took interviewing all kinds of experts, trying out the latest hacks and jumping on new trends, to figure out what works for me. Here’s how I make sure I fall asleep at the same time every night.

1. Following the 10-3-2-1-0 rule

The 10-3-2-1-0 rule is designed to make falling asleep at night as easy as possible. Here’s how to follow it:

10 hours before bed, avoid caffeine

3 hours before bed, avoid alcohol and food

2 hours before bed, avoid work

1 hour before bed, avoid screens

And snooze your alarm 0 times

Sleep hygiene refers to your habits and lifestyle that impacts the quality of your rest, and the 10-3-2-1-0 rule encompasses most of the good sleep hygiene habits experts recommend you stick to.

By following this rule, I can ensure my diet and lifestyle aren’t blocking my natural ability to fall asleep fast. One of the most important considerations for a well-regulated sleep schedule is avoiding alcohol.

“Even one glass of red wine can disrupt sleep patterns,” says Lauri Leadley, a Sleep Educator for Valley Sleep Center. “A general rule of thumb for me is, don’t consume alcohol right before bed,” she adds.

However, she agrees with the 10-3-2-1-0 rule, saying that “having a glass of wine with dinner, and then giving your body a few hours prior to bedtime shouldn’t be a problem.”

Without caffeine interrupting my hormones, work overstimulating my brain or alcohol blocking my REM sleep (essential for mental and physical recovery), I not only fall asleep fast at the same time every night, but usually sleep through the night without those pesky 3am wakeups.

2. Having a warm bath as part of my nighttime routine

A nighttime routine isn’t just for kids. In fact, as we’re creatures of habit, repeating the same activities night after night can signal to our brains and bodies that it’s time to wind down.

Which is why creating a calming nighttime routine has been essential in helping me fall asleep at the same time every night.

Key to this? A warm bath. It sounds simple, but there is real science behind this easy hack.

“Our core temperature naturally starts to fall in the evening to signal to the brain that it’s time to sleep,” says Dr. Otulana, a GP and Physician. This tells our body that it’s time to rest.

A warm bath might sound counter-intuitive, but actually stepping from a hot bathroom to a cooler bedroom causes a significant drop in your body temperature.

This temperature drop is a key sleep cue for our bodies because, as Leadley says, “body temperature dropping increases melatonin, so sleep initiation is easier and sleep lasts longer.”

On top of this, a bath can offer a screen-free space to unwind, relaxing both your body and your mind.

3. Anchoring my wake-up time

A mistake many people make when trying to fix their sleep schedule is trying to force a new bedtime. Instead of simply expecting to fall asleep earlier if you try, starting with changing your wake-up time can be more effective.

I decided to anchor a 7.30am wake-up time, no matter what my plans were the next day. This meant my morning schedule didn’t change, so by the time 11pm came around, I was tired enough naturally to fall asleep easily.

Knowing exactly what time I was waking up the next day meant I wasn’t tempted to stay up late, especially considering I needed at least seven hours of sleep.

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