Whispering for better sleep, and remembering what you learn

Rumination, worry, and negative thoughts disturb our sleep, making them key targets for psychological interventions. Especially during the sleep onset period, negative thinking increases...
polyphasic sleep

Dividing sleep across day and night: polyphasic sleep is not for most of us

What do Leonardo da Vinci, Nicola Tesla, and Cristiano Ronaldo have in common? All of them allegedly followed or still follow a so-called “polyphasic...

Sleep and Memory

by Björn Rasch  Department of Psychology, University of Fribourg, Switzerland Björn Rasch PhD is a sleep researcher and biopsychologist...

Do Insects Sleep?

When your dog is tired, she looks for a suitable place to lie down, closes her eyes, and nods off. There is little doubt...

Melatonin and Its Uses

Google “melatonin” and the search engine will provide nearly 2 million references at the time of writing (August 2020). These vary from factual science...

Does Sleep Reflect Daytime Experience in Specific Parts of the Brain?

The dolphin sleeps with one half of its brain at a time, while the other half stays awake. This was shown by the Russian...

Challenging the Tendency to Oversleep: A Strategy for Confronting Chronic Depression

Chronic depression is a common and disabling disorder that is often resistant to standard antidepressant treatment. Many patients with chronic depression have a strong...

A Brief Guide to Chronic Insomnia Disorder

What is chronic insomnia disorder? The official Diagnostic Criteria for Chronic Insomnia Disorder provide an excellent “tick-off-list” to determine what symptoms are present, and if...

The Night, and Sleep, Need Darkness

The Night, and Sleep, Need Darkness We are losing the night.  Most parts of the world are lit up with streetlights and other sources of...

Power Naps Bring Power

Power Naps Bring Power Sleep science is very curious about napping. Some people do it, others avoid it, babies are multiple nappers, oldies need to...