top of page

Why do some people struggle with sleep, while others sleep well?

Writer: Sophie Bostock, PhD
Sophie Bostock, PhD
Mar 19, 2021
1 min read

In this video I explain one model to explain how insomnia develops.


We all start with some sort of predisposition, which makes some people more vulnerable to sleep problems than others, but this on its own is rarely enough. It's usually a precipitating factor, or trigger, which tips us over the edge.



Many sleep problems are temporary - we recover after the stress passes, or when we adapt to our new situation. The things which make insomnia stick around are often behaviours and thoughts - which might be a reaction to poor sleep.


To solve this cycle, we need to tackle the thoughts and behaviours which perpetuate insomnia. The approach with the best evidence is CBT for Insomnia.



To learn more about that, please subscribe - most of the Sleep Toolkit posts share tactics and strategies from CBT for Insomnia.


This video is based on the '3Ps' model proposed by Art Spielman and colleagues in 1987.


This is part of a series of 5 videos I wrote for the team at Bensons for Beds for World Sleep Day 2021 - you will find the other 4 videos on their Instagram site @bensonsforbedshq


14 Comments


Jai Sharma
Jai Sharma
Oct 28

Choosing from  trending names for boy  is harder than I expected. I like names that are easy to pronounce and have a nice meaning.


Like

Jai Sharma
Jai Sharma
Oct 28

 Is there a simple way to turn a long website link to qr generator? I want something that works directly online.


Like

FelixAlvarez
Oct 26

https://casinodepot1euro.com actually came to mind when you mentioned that predisposition alone is rarely enough, since it's such a clear way to explain why two people can face the same stressor and only one ends up with chronic insomnia. The point about behaviours and thoughts being what keeps the cycle going rather than the original trigger really reframes things, and it matches what I've noticed in my own family where the "good sleepers" seem to be the ones who don't panic about a bad night.

Like

qu qi
Oct 04

Just opened my laptop to clear some screenshots using a handy text remover while reading this fascinating sleep science article by Sophie Bostock. It totally makes sense how Art Spielman introduced the three Ps model back in 1987, break https://text-remover.orging down predisposition, triggers, and perpetuating factors. Knowing that most sleep struggles are just temporary phases and that cognitive behavioral therapy offers the best evidence really brings great peace of mind. https://text-remover.org

Edited
Like

Thomas Vickery
Oct 04

For anyone preparing for the AISS info session on 14 November, clear notes really help. I sometimes use a bold text generator to emphasize just a few key words in my reminders, which keeps them readable before the Q&A.

Like

HOW CAN I HELP?

Every few weeks I tackle a juicy sleep question in the Sleep to Peak newsletter. Sign up for monthly updates, or to get your question answered.

​

If you'd like more information about speaking, coaching, or consulting, please get in touch! You can also reach Sophie at sophie@thesleepscientist.com.

​

  • LinkedIn Social Icon
  • Instagram
  • Twitter Social Icon
  • YouTube Social  Icon

Thanks for signing up!

© 2026 Sophie Bostock Version 4.0.

Based in Hampshire, United Kingdom. Privacy Policy.

bottom of page