I explain what sleep type is, how to work yours out, and what sleep type means when it comes to your sleep. I also look at what happens if you're sharing a bed with someone who isn't the same sleep type. And I'll explain why it is about owls and larks and where we sit on the continuum between them, and why wolves, bears and dolphins are just not needed. 

For more info on James’ work go to www.thesleepgeek.co.uk