Dr Alex Bartle: Medical Director of Sleep Well Clinics on social media trend of people taping their mouth closed before sleep - The Mike Hosking Breakfast

There's a new trend taking over social media. 
This is a TikTok thing, linked to the idea it's unhealthy to sleep with your mouth open. 
It has led to people taping their mouths shut before they hit the hay so they breathe through their nose. 
Dr Alex Bartle is the Medical Director of Sleep Well Clinics and he joined Tim Dower. 
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