| url = http://www.dr.dk/p1/videnskabens-verden/videnskabens-verden-98
}}
* [http://www.isleep.dk Klar viden om søvnløshed, søvnbesvær og insomni.]
* [http://www.huffingtonpost.com/2014/03/07/your-body-does-incredible_n_4914577.html Your Body Does Incredible Things When You Aren't Awake. Huffpost Healthy Living]
== Referencer ==