The alarm goes off, you’re achy, and your head feels foggy. You slept for eight hours, yet you get out of bed feeling exhausted. Waking up feeling great isn’t about how long you sleep, but rather a specific sequence of events that takes place both the night before and in the first thirty minutes after waking up. In our latest podcast, we spoke with Clémence Lejoly, a psychologist specializing in sleep. Here, based on her insights, are the real keys to waking up energized and starting your day off on the right foot.
Why You Feel Tired When You Wake Up, Even After Eight Hours of Sleep
You can sleep for eight hours and wake up exhausted, just as you can sleep for six hours and feel great. What matters isn't just the amount of time spent in bed, but the quality of the sleep you get there.
As Clémence Lejoly points out, eight hours is an average for the general population, not an absolute standard. Some people naturally need seven hours, others nine, with variations depending on the season. Trying at all costs to sleep more when our bodies don’t need it can even have the opposite effect: the more we force it, the worse we sleep. Clémence regularly sees patients who are convinced they need nine hours but who actually sleep only six and a half hours, interrupted by nighttime awakenings.
The Morning Cortisol Peak: Your True Biological Wake-Up Call
Cortisol, the hormone associated with stress, has been heavily demonized. Yet, as Clémence points out, it’s also what allows us to wake up feeling refreshed. The body functions according to a precise cycle, regulated by our biological clock: melatonin levels rise at the end of the day to help us fall asleep, drop during the night, and give way to a morning spike in cortisol that gets the body going again. This spike is a real internal boost, following a circadian rhythm synchronized with daylight.
But when we don’t sleep well, this mechanism gets thrown off balance. We produce less cortisol in the morning, so we’re less alert when we wake up and feel less energetic right from the start of the day. And, paradoxically, we may experience cortisol spikes during the day or in the evening, creating a vicious cycle: the night feels short, mornings become more difficult, and persistent fatigue sets in.
Deep sleep, which occurs mostly at the beginning of the night, plays a central role: it slows cortisol secretion and allows for true physical recovery. That is why the hours that count double are between midnight and 4 a.m., not before.
Prepare for Waking Up the Night Before
This is one of Clémence’s most important lessons: you prepare for sleep in the morning, not at night. Many people start worrying about their sleep around 8 p.m., which is far too late. Three pillars form the foundation of a day that sets the stage for a good night’s sleep.
- Wake up at the same time every day. This is the number one way to set your biological clock. Getting up at 7 a.m. on weekdays and 10 a.m. on weekends causes a kind of “social jet lag” that throws off your entire following week.
- Eat a proper breakfast. Clémence never recommends intermittent fasting to people looking to improve their sleep. Breakfast kick-starts digestion and signals to the body that it’s time to start the day.
- Get some exercise during the day. Exercise increases the proportion of deep sleep the following night. A daily walk is enough to stabilize your circadian rhythm.
In the evening, take some time to wind down: fifteen to thirty minutes of conscious relaxation, with dimmed lights, a few stretches, and breathing exercises. Turn off your screens at least an hour before bed to allow melatonin to be released.
The 3 Essential Steps for a Gentle Wake-Up
Once you're up, the first thirty minutes set the tone for the rest of the day. Here are the key tips for waking up feeling energized.
- Open the curtains right away. Exposure to natural light as soon as your alarm goes off sends the brain the most powerful signal to boost your morning cortisol spike. If you wake up before dawn, a dawn simulator or a light alarm clock offers a truly gentle wake-up, less jarring than a sudden alarm.
- No phone for the first hour. Scrolling first thing in the morning exposes you to artificial light and a flood of stimuli that interfere with your body’s natural wake-up process. The dopamine generated by your news feed masks the natural energy provided by cortisol.
- Get your body moving. Stretch, raise your arms above your head, and take a few deep breaths. A short walk outside—even just ten minutes—helps set your circadian rhythm for the entire day.
The Sleep Environment: The True Foundation of a Restful Wake-Up
For Clémence Lejoly, the sleep environment is the foundation of everything. A quiet, dark space dedicated to sleep. She emphasizes a point that is often overlooked: you have to trust your bed. If the bed becomes a source of tension or discomfort, the entire sleep process is disrupted. Temperature also plays a key role: a bedroom that’s too warm prevents the drop in body temperature necessary for deep sleep.
That is precisely the philosophy we embrace at Kipli. Our 100% natural latex mattresses are temperature-regulating, free of chemical treatments, and provide ergonomic support that allows the body to rest without micro-tensions. A bed you can truly trust, as Clémence says.
What's Quietly Sabotaging Your Morning Routine
Certain common habits can ruin the quality of your wake-up experience, even when you think you're doing the right thing.
- Social jet lag. Going to bed at 1 a.m. and waking up at 11 a.m. on Saturday is like inflicting a mini-jet lag on yourself, the effects of which are felt throughout the week.
- Alcohol before bed. It makes it easier to fall asleep but causes dehydration and reduces sleep quality. The second half of the night is disrupted, and you wake up without feeling truly refreshed.
- Caffeine consumed too late in the day. It remains active for several hours and disrupts the late-night sleep cycles, which are rich in REM sleep. A cup of coffee at 4 p.m. can be enough to leave you feeling groggy when you wake up.
- The belief that you absolutely must sleep eight hours. This mental pressure is actually what keeps you from sleeping. It’s a physiological letting go that promotes restful sleep, not willpower.
Key Takeaways: 10 Techniques for Waking Up Feeling Great
- Wake up at the same time every day, including on weekends, to set your body clock.
- Eat a proper breakfast to signal to your brain that it's time to get going.
- Get some exercise during the day to promote deep sleep the following night.
- Create a wind-down routine in the evening with breathing exercises and soft lighting.
- Turn off your screens at least one hour before going to bed.
- Gradually adjust your bedtime if you've fallen into a bad sleep routine.
- Open the curtains as soon as the alarm goes off to let in natural light.
- Use a dawn simulator or a light alarm clock for a gentle wake-up.
- Avoid caffeine after 3 p.m. and alcohol in the evening.
- Trust your bed and take care of your sleep environment: a cool, dark, quiet bedroom.
Waking up feeling great isn’t a matter of willpower, but of biological rhythm. As Clémence Lejoly puts it, sleep is, above all, a physiological process. Waking up feeling refreshed is simply the visible result of a night’s sleep that was able to do its job. To learn more, check out our article on the benefits of waking up naturally and our guide to establishing a healthy sleep routine.
Listen to Clémence Lejoly, a sleep psychologist
Check out our full conversation with Clémence on the mechanisms of sleep, cortisol, nighttime cycles, and the real keys to getting a good night’s sleep. It’s a rich yet accessible episode—perfect for a relaxing listen in the evening.
Kipli, of course.
Written by the Kipli team, specialists in natural sleep since 2018.