Philips SmartSleep - anyone have one?

Was following a link that dogslobber posted the other day - browsed around a bit and found this Philips SmartSleep.
https://www.usa.philips.com/c-e/smartsl ... sleep.html

Looks interesting. And pricey at $400. Would sure like to hear from anyone who's using one. I'm not particularly interested at the present time - I just ditched mask straps and headgear forever in February when I started using the Bleep. And honestly, this thing looks like winter apparel - I think it'd be hot in the summertime. But if it really extends and enhances deep sleep, very intriguing for sure.

Here's a brief Ted Talk that I believe is about the tech being used. He does play the "magic sound" in the video. It's wierd.
https://www.youtube.com/watch?v=1U2qMRGihGg

I'm thinking about buying this. Going to research more on this to see if it actually works.

I see the sensors are only usable for 3 nights.
Add that to the initial outlay, and one would have to be really desperate . . .
Sorry, but no thank you to the spam.
Interestingly, wearing an ordinary head covering at night can sometimes help with sleep.
Well worth trying, because of the cost.