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Why can't I fall asleep?

Why is getting to sleep much harder for some people than others? It sometimes takes hours for listener Assia to drop off - we turn to experts for possible explanations.

Some people fall asleep almost as soon as their head touches the pillow, while for others it can take hours of tossing and turning. CrowdScience listener Assia needs at least 45 minutes to get to sleep: it's always taken her a long time to drift off no matter how tired she is, and nothing seems to make a difference. She asked us to investigate. 

Presenter Caroline Steel turns to experts to find out what happens in our bodies when we fall asleep, and why it’s more difficult for some than others. Eus van Someren explains how our bodies know when it’s time to get some rest and what can influence the difficulty of getting to sleep from our earliest years. Morten Kringelbach reveals that there may be more stages of sleep than we thought, and Ada Eban-Rothschild tells us why we have something to learn from the birds and the bees about getting a good night’s rest.

Caroline has trouble getting to sleep herself, and volunteers to have her sleep monitored in Cardiff University’s sleep lab. And we share some expert tips on falling asleep more easily.

Presenter: Caroline Steel 
Producer: Jo Glanville
Editor: Cathy Edwards
Studio Manager: Jackie Margerum
Production co-ordinators: Jana Holesworth and Josie Hardy

With thanks to Professor Milton Mermikides for permission to include his composition ‘Transitions’.

(Photo: Caroline Steel takes a nap in Cardiff University’s sleep lab)

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29 minutes

Last on

Mon 5 May 2025 12:32GMT

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