Sleep: When at night you can no longer find your way back to yourself

I bet you know this feeling. You lie down, exhausted to the bone. The body wants to. The mind doesn't. It keeps spinning. It plans. It remembers. It sorts. And eventually, when it does sleep, something rips you back out at three. You lie there, your heart beats faster than it should, and you think: why is my body doing this?

Or the other one. You sleep seven, eight, nine hours. And you still feel as if you were never gone. As if the sleep took place, but did not mean you.

These are three completely different problems sitting under one word: sleep disorder. Most doctors treat them as if they were the same thing. I work differently.

The three faces of your night

Before we can even talk, we have to know what we are talking about. Because trouble falling asleep is, neurobiologically and emotionally, something completely different from trouble staying asleep. And both are again something different from sleep that does happen, but does not nourish you.

Clinical sleep medicine puts all of this under the heading of insomnia in the ICSD-3. The German AWMF S3 guideline Insomnia in adults (registry no. 063-003) puts the figure for diagnostic insomnia in Germany at 8 to 15 percent. The largest analysis to date, Kocevska and colleagues 2021 in Nature Human Behaviour with more than 1.1 million people from three countries, shows that sleep complaints increase with age and that women are more often affected than men.

First, rule out: what conventional medicine must not miss

Before we talk about Anthroposophy, KPNI and liver rhythms, we have to do one thing: take the organic causes seriously and rule them out. Not because conventional medicine has the last word. But because it would be unfair to recommend a meditative breathing rhythm to you when in truth you have an untreated sleep apnea.

A large epidemiological analysis in The Lancet Respiratory Medicine estimates that nearly one billion people worldwide have obstructive sleep apnea. Only a fraction know it. Anyone who snores, falls asleep during the day, wakes up with a dry mouth and has a thick neck belongs in a sleep lab or at least on an outpatient polygraphy device.

Trouble falling asleep: when the mind does not want to enter the body

In Rudolf Steiner's view of the human being, the human consists of four members. The physical body, the living etheric body, the soul-feeling astral body, and the I. At night something very beautiful happens: the astral body and the I detach a bit from the body, go into the spiritual world, and the body is allowed to regenerate. In the morning they return.

Trouble falling asleep, in this picture, is not a brain-chemistry problem. It is a disturbance of the transition. The astral body, which is everything that thinks, plans, remembers, does not want to let go. It holds itself in the body. And as long as it does, the body cannot sleep.

The question is: why does it hold on.

Two variants, one movement

In Anthroposophy there are two basic directions for this. Either there is too much spirit in the body that cannot let go. You are entirely in your head, you have not closed the day, you are still carrying the conversation from 6pm with you. Or there is too little body to catch the spirit. You haven't exerted yourself physically. The body is not tired enough to invite the spirit to come to rest.

That sounds old-fashioned. But it is precisely described in modern neurobiology.

In KPNI language: the nervous system is in continuous sympathetic tone. The parasympathetic, your vagus nerve, doesn't get its turn. This raises evening cortisol, blocks melatonin release, suppresses GABA. An MRS study in PLoS One showed that people with insomnia have less GABA in the brain than healthy controls. GABA is the most important calming signal in your brain. Less GABA, less pause.

Trouble staying asleep: the hour between the liver and the soul

You fall asleep. All good. Then around three something pulls you back out. You lie awake, sometimes in panic, sometimes only with this strange here-I-am-again feeling. And you don't get back into sleep for an hour, two hours.

Old Chinese medicine has named this hour for centuries. Between 1 and 3 in the morning, it says, is the time of the liver. Between 3 and 5 the time of the lung. Between 5 and 7 the time of the large intestine. For each hour an organ, each organ with an emotional theme, each organ with a physiological task.

Is this just old magic? Not entirely. Modern chronobiology has by now shown that almost every cell in your body carries its own clock. In 2014 a paper in PNAS published a circadian gene-expression atlas across twelve tissues. Result: the liver, the heart, the kidney, the fat tissue, all have their own peaks of gene activity. The liver expresses its detoxification enzymes especially strongly in certain time windows.

Trouble staying asleep rarely has one cause. It usually has three to five. And every single one of them can be examined.

The nocturnal cortisol peak, shifted

In a healthy rhythm cortisol drops low in the evening, has its low point around two in the morning, and then slowly rises to wake you up around seven. In chronic stress, in HPA dysregulation, in perimenopause, this rise shifts. The cortisol surge comes too early, sometimes around half past two. You wake up with the feeling something is important, and nothing is really important.

The nocturnal hypoglycemia that no one measures

Here comes something I see often in the practice and almost never find in textbooks. People who eat little in the evening or very early have no glucose supply during the night. Between two and three the blood sugar falls below a critical threshold. The body, evolutionarily wise, releases adrenaline and cortisol to mobilize glucose from the liver. Adrenaline wakes you up. You think you have trouble staying asleep. In truth you have nocturnal hypoglycemia.

Philip Cryer described this counter-regulation meticulously in the diabetes literature. And Banarer and Cryer showed something decisive in Diabetes in 2003: during sleep the adrenaline response to falling blood sugar is attenuated. That means the body has to counter-regulate more strongly to wake you up, and the waking itself often becomes the only remaining safety mechanism. The mechanism is not just for people with diabetes. It applies to anyone with unstable blood sugar, especially women in perimenopause, people after intense evening exercise, people with little muscle mass, people on low-carb diets without enough protein.

Progesterone and the forgotten allopregnanolone

For women, a second major factor comes in. Progesterone, the second female cycle hormone, is converted in the body into a metabolite called allopregnanolone. And allopregnanolone is one of the strongest natural modulators of your GABA-A receptor. Put more simply: it binds where benzodiazepines also bind. Only naturally, endogenously, rhythmically.

In perimenopause, progesterone falls first. Allopregnanolone falls with it. The GABA receptor gets less of its natural calming signal. Trouble staying asleep in women from 40 onwards is therefore very often a question of progesterone, not of melatonin.

Histamine, thyroid, liver detoxification

Three more candidates that can play a role in the practice. Histamine has a peak at night between two and three. Anyone who eats very histamine-rich food, who has DAO deficiency, can get restless in this phase. An overactive thyroid (Hashimoto can show both faces) drives the heart rate up at night. An overloaded liver, which has to detoxify medications, alcohol, processed food and pent-up emotions all at once, wakes you because in the deep phase it cannot get through.

Non-restorative sleep: when you were present, but not nourished

The third face is the trickiest. You sleep seven hours. But you get up as if after a bad night. No dreams, no feeling, no letting go. Coffee becomes a crutch. The afternoon is a fight.

Non-restorative sleep is almost always one of three things: an undetected apnea, a fragmented REM phase, or too low parasympathetic activity at night. All three are measurable.

HRV: the window into your night that you can have at home

Now to a topic that has often surprised me in practice. I analyze the sleep of my patients through heart-rate variability, HRV. Across several nights. At home. In their own bed. And I get information from it that comes very close to the sleep lab in many dimensions.

Why does this work? Because your heart beats differently in every sleep stage. In deep sleep it becomes slow, very regular, variability rises. In REM it becomes irregular, breathing becomes more chaotic, the sympathetic system mixes in. In waking: different again. The pattern of the heart rhythm tells you which sleep stage is happening right now.

I do not use HRV to prove that you sleep badly. You know that yourself. I use it to see when your body is not sleeping. When it falls out of REM. Whether your parasympathetic system becomes dominant at all. What your deep-sleep density looks like at three. These patterns are often what makes the diagnosis possible in the first place.

The causes nobody expects

I have worked with many people on sleep problems over the past years. And I have learned that the causes often sit in places where nobody looks for them. Classical sleep medicine looks at the brain, the breathing, the bed. The functional and KPNI view also looks at the gut, the liver, the hormones, at biographical stories that are still awake at night.

The list is incomplete. It is meant to show you: if everything was normal in your case, something is wrong with the list. It is the wrong reference values, the wrong parameters, the wrong interpretation of normal. In functional medicine we do not only ask whether a value is in the reference range, we also ask where it sits in the optimal range.

Rhythm as the foundation: light, blue light, movement

Now to the part you find in every sleep guide. I write it anyway because it is important. But I write it with one caveat up front: sleep hygiene alone almost never solves your sleep disorder. It is foundation, not therapy. If your foundation is leaky, no roof helps. If your foundation stands, that does not mean a house has been built on it yet.

Light in the morning, darkness in the evening

Your suprachiasmatic nucleus in the hypothalamus is the central pacemaker. It reads light through special ganglion cells in the retina that respond most sensitively to blue between 460 and 480 nanometers. In the morning, 10,000 lux for 20 minutes anchors your rhythm. In the evening, strong blue screen light shifts it.

Movement as foundation, not as a trick

Kredlow and colleagues published a meta-analysis of 23 randomized studies in 2015. Physical activity improves sleep parameters with effect sizes that are clinically relevant. Strength training and endurance both work. High-intensity training right before bed is too activating for many. Moderate movement in the afternoon or early evening seems to be the sweet spot.

The basics, in one sentence

The bridges: what can help at night

I am deliberately not going to give doses here. Dosing belongs in the consultation, not in a blog. But I would like to show you the directions we can go in the practice. It is always a combination of biochemistry, nervous system, and rhythm.

True freedom

Here is a sentence I will say to my daughter one day. Sleep is not a duty you fulfill. Sleep is the conversation between your body and yourself that you could not have during the day. When you sleep well you are freer. Not more efficient, not more productive, that comes as a side effect. Freer.

You make different decisions when you have slept. You are more patient. You are more courageous. You are yourself, and not an exhausted version of yourself.

What you can do differently from today

If you want not only to read but to start directly: below this article you will find the option to book an appointment. Then we will look together at which face your night is carrying. And what we can do about it together.