BBC World Service East Asia

The Why Factor

Documentaries

Factual

The extraordinary and hidden histories behind everyday objects and actions

The Why Factor: Sleepwalking

Sleepwalking

01/01/2018 GMT

BBC World Service - The Why Factor, Sleepwalking

Bizarre bedtime behaviours that include a woman who went motorbiking while asleep

Bizarre bedtime behaviours that include a woman who went motorbiking while asleep and a man who uses a shoe to dial out for pizza. What can we learn from their brain activity?

Why do some of us do bizarre things in our sleep? Like riding a motorbike, using a shoe to ‘phone for pizza or even having sex while sleeping? These are complex behaviours and yet sleepwalkers aren’t aware of what they’re doing and often have no memory of their strange night-time activities. 

These sleep disorders are known as non-REM parasomnias and include conditions like night terrors and sleep eating. 

Neurologist, Dr Guy Leschziner, talks to patients he’s been treating at his sleep clinic at Guy’s and St Thomas’ hospitals in London. They include Jackie who began sleepwalking as a child and continued her strange night-time behaviour as an adult, even driving her car whilst sleeping; from Alex who rescues people from floods in his sleep. And we hear from Tom, whose recent diagnosis of sexsomnia has had a significant impact on his life.

(Image: Girl on tightrope in moonlight, Credit: Shutterstock)

BBC World Service

BBC World Service Online

BBC World Service Australasia

BBC World Service East and Southern Africa Schedule

BBC World Service East and Southern Africa

BBC World Service schedule for American satellite radio and the Caribbean

BBC World Service Americas and the Caribbean

BBC World Service South Asia

BBC World Service Europe and the Middle East

BBC World Service West and Central Africa Schedule

Accessibility links

Programme Index

The Why Factor

Sleepwalking

Genres

Formats

Brand

BBC World Service East Asia

About BBC World Service