"It" never leaked at all.
But, if your a mouth breather and tape, there is no way to tape your trap "shut".
I put as much tape all around it as I could, but woke up many times, and my mouth was so dry.
I did wear my chin strap, but apparently I'm a big time mouth breather even though I only sleep on my side.

THIS IS A NORMAL NIGHT FOR ME WITH THE WISP, CHIN STRAP AND TAPE.

Sorry, I'm not very good at posting stuff. Just to get this here took me two hours.LOL



