We are very happy to have Dr. med Lutz Graumann onboard as a member of the Dagsmejan medical board. Dr. Graumann is a specialist in sports medicine, nutrition and chirotheraphy and works extensively with the role of sleep and recovery for the performance of professional athletes as well as in our daily lives.

Lutz Graumann Dagsmejan

At Dagsmejan our mission is to improve our sleep because sleeping better is living better. By understanding our physiological sleep needs we can enjoy a more restorative sleep to wake up with more focus and energy. That’s smart sleepwear.


To be able to enjoy a truly restorative sleep we need to keep the optimal temperature for sleeping throughout the night. If we don’t stay in the ideal climatic comfort zone our deep sleep in particular suffer and we wake up tired the next day. Dr. Graumann understands the role smart pyjamas plays when it comes to our sleep duration and sleep quality: 

 "Thermoregulation is key for a good night sleep. To fall asleep and to enjoy a deep, restorative sleep we need for our core body temperature to drop, but if we get too cold we will shiver and our sleep quality suffers. That is why I recommend sleepwear by Dagsmejan; they help us to cool down or warm up depending on our needs so that we can sleep deeper for longer."

Sleep impacts all facets of our lives, Dr Graumann is working extensively how it impacts our ability to work better and get more out of our sports practice. He shares some tips and advice on sleeping like a boss and sleeping like a champion.


There are a lot of myths around about sleep and performance. But the days of top executives bragging about only sleeping 4 hours a night are coming to an end. Successful business men like Jeff Bezos are instead talking about the key role sleep plays in their ability to stay focused and on top of their game throughout the day. Jeff Bezos says that he needs 8 hours of sleep every night for example and Dr Graumann says that one of the big myths is the belief that we can learn to get by with little sleep. We need at least 6 hours of good quality sleep to even function normally, to be on top of our game we need even more. Another myth is that the early bird catches the worm.

“However, it’s not getting up early that matters but rather understanding our own circadian rhythm and using it to be at our creative best.”

By respecting or own rhythm and taking recovery breaks when needed we can make sure that we get the most out of our work and the most out of our lives.


What can we learn from the professional athletes that are on top of their game? One important lesson is that sleep has been a vital component of their success. 

Serena Williams and Roger Federer sleep up to 12 hours a night, in particular during competition season.

Dr Graumann works directly with many top athletes and he enhances 2 factors to consistently sleep well to perform well.

  1. Make sleep a priority: Sleep is the key to be a sustainable high performer which means that we need to really make sleep a priority. not only the amount of sleep we get but also the quality. It’s in the deep sleep phases that our physical restoration takes place. Find out how many sleep phases you need depending on your performance.
  1. Establish your sleep routine for a restorative sleep: a vital part of our sleep routine is thermoregulation as we need to keep the right temperature to really enjoy a restorative sleep.


Discover how to sleep better with temperature regulating and breathable pyjamas:

Dagsmejan temperature regulating pajamas