top of page


Sleeping in on weekends: maybe not as bad as previously thought
People who compensated for sleep deprivation with catch-up sleep did not have an increased risk of mortality. People who consistently slept too little without ever making it up did
Jorge Marten Groen
May 122 min read


Real Results: Clients Share Their Sleep Coaching Success Stories
<p>Sleep improvement is rarely a dramatic overnight transformation. More often, it begins with quieter changes: less dread at bedtime, fewer anxious thoughts at
Jorge Marten Groen
May 85 min read


She sleeps four hours a night with the help of a pill. She’s 95
Chronic insomniacs are treated harshly in the media. We’re told that six hours of sleep damages the brain, weakens the immune system, and causes the heart to fail. That the risk of depression increases. And yet, some people still make it to 95 just fine
Jorge Marten Groen
May 73 min read


Always switched on: how hyperarousal sabotages your sleep
People with insomnia have a specific tension profile, in which sleep-related and anxiety-related forms weigh most heavily. This explains why insomnia can be so persistent
Jorge Marten Groen
May 43 min read


Chronic insomnia makes your brain four years older
A forty percent higher risk of dementia. Brains that function as if they are four years older. These are the figures from a study involving more than 2,700 adults with chronic insomnia
Jorge Marten Groen
Apr 302 min read


Comparing Sleep Coaching Services: Why Droomtroost Stands Out
<p>Sleep support has become easier to access, but not necessarily easier to evaluate. Many people who search for slaaptherapie online are not simply looking for
Jorge Marten Groen
Apr 254 min read


Exhausted and yet awake, this is what goes wrong
The metaphor of the accelerator pedal and brake pedal is powerful because it provides insight. It shows that insomnia is not a lack of ability to sleep, but a disruption of balance. It’s something that arises when your system receives the right signals and nothing is standing in the way anymore
Jorge Marten Groen
Mar 193 min read


Why that one cup of coffee isn’t the problem
What makes caffeine sneaky is that it’s in more products than you think. Many people only think of coffee, but tea, cola, energy drinks, chocolate, and even some workout supplements and painkillers also contain caffeine. Together, they can add up to a stack bigger than you expect—and that your body still has to handle at night
Jorge Marten Groen
Feb 253 min read


Why your desire to sleep is preventing you from doing so
It’s the paradox of the insomniac: the harder you try to sleep, the more difficult it seems. But why does this happen? Why can’t we sleep, precisely when we want it so badly?
Jorge Marten Groen
Feb 181 min read


Going to the doctor with sleep problems: a logical start but not always the end
Doctors prescribe sleeping pills to one in two people who suffer from insomnia. Sleeping pills do have an effect. They calm you down. They make you drowsy. Sometimes you suddenly sleep through a few hours again. That can feel like a relief. You might sleep better, but the confidence that you can do this on your own gradually fades into the background.
Jorge Marten Groen
Feb 183 min read


Jetlag? Here’s how to let your internal clock fly along smoothly
You can reduce the effects of jet lag with a few smart hacks.
Jorge Marten Groen
Sep 16, 20253 min read


Do sleep supplements work? What science says (Part 1)
I will elaborate a bit more on popular sleep supplements. This is based on an article in The Washington Post, which evaluated recent scientific research on the possible positive effects of five supplements often used to improve sleep: melatonin, magnesium, probiotics, vitamin D, and ashwagandha.
Jorge Marten Groen
Aug 12, 20253 min read


Give yourself a sleep routine, your awake brain will thank you
A sleep routine helps signal to your brain and body that it’s time to wind down. By repeating the same calming habits each day, you reduce stress, fall asleep more easily, and improve the quality of your sleep.
Jorge Marten Groen
Aug 11, 20252 min read


A bad night doesn’t have to make a bad day
Do you remember pulling an all-nighter in the past? Did you have a bad day the next day?
Jorge Marten Groen
Aug 7, 20251 min read
bottom of page