Dr. Matt Walker

So that's...

That was, I think, a brilliant causal manipulation.

The problem is that most of us don't have access to a sort of come to bed eyes thermal suit.

So what can we do as a concert?

Please don't cut that.

I get myself into terrible trouble, rightly so.

I should be punished.

You'll be all right.

What they did then was to say, well, okay, let's look at this.

is there something that we could do that's cheaper and more accessible to the general public?

And if you look, there's a literature that preceded that manipulation.

And it's so reliable that we now have a term for it in sleep science.

It's called the warm bath effect.

And many people will say, look, I love to have a warm bath or a hot shower before bed.

And I think when I get out, I'm nice and toasty.

And it's because I'm nice and warm that I fall asleep and I stay asleep.

It's the exact opposite.

When you get out of the warm bath or the shower,

you have once again vasodilated at the surface of your skin you get out of the bath you get this huge thermal dump of heat away from the core what happens you fall asleep and you stay asleep more sadly now there are other reasons that that has a benefit it's relaxing you decompress you're staying away from technology etc but that is one of the the thermal benefits and in fact there were studies by a legend in my field who passed away just a few years ago um jim horn at loughborough university in the uk

And they did some of these pioneering studies.