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What others post on social media about sleep (and whether it’s accurate)
During a scroll through social media, I notice how persistent certain sleep myths still are. I’ve listed four common ones.
Jorge Marten Groen
Apr 133 min read


What sleep trackers can and cannot measure
A study by researchers from the University of Salzburg compares eight popular sleep trackers with polysomnography, the medical gold standard for sleep research. The findings are surprising.
Jorge Marten Groen
Apr 92 min read


Sleep 11 minutes longer, love your heart!
A large observational study in the European Journal of Preventive Cardiology, conducted among over 53,000 adults, shows that three small daily adjustments together can already make a noticeable difference for your heart
Jorge Marten Groen
Apr 62 min read


The thin line between optimizing sleep and overthinking sleep
The next time your “smart” watch tells you that you only got 45 minutes of deep sleep or your sleep score has dropped below 70, take a moment to breathe calmly
Jorge Marten Groen
Mar 172 min read


Struggling with sleep? Let’s measure it
In my sleep coaching programs, I don’t treat questionnaires as just a 'test'. I use them as a starting point for meaningful change
Jorge Marten Groen
Aug 25, 20252 min read
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