How does hydration affect our sleep?

I recorded this podcast recently with Alison Marsden, all about how hydration affects our sleep.

Alison helps people increase their energy levels through diet and nutrition, and has recently had her first book published (The Jigsaw Method - available on Amazon). In it she includes a whole chapter on hydration;

YouTube link; how does hydration affect our sleep?

https://youtu.be/cMEOjWdoqw4