Not a female here but ideas could be gender neutral. Here is what I have been doing. Been meaning to get picture(s) up and explain.
I have lost a good bit of weight this year. Unfortunately the weight loss has initiated mouth leaks that I did not used to have before. In the past, I found that chinstraps would hold my lower jaw in place but that air would still leak out between my lips (lip flutter). I noticed that if I put my hand over my lips while using the chinstrap, I could prevent the lip flutters.
So I used a micro-fleece headband to cover my mouth and then put Bret's PapCap to hold my jaw in place and the headband in place over my lips. The headband has just enough elasticity to conform to the shape of my mouth without placing too much isolated or differential pressure in some spots and leaving free gaps for air leaks and it is very soft and comfortable. Plus you can actually part your lips a bit and breath through it if necessary ... the purpose of the band is just to hold your lips snug tight while in a relaxed sleep state and thereby preventing the lip flutters. The whole setup also prevents the “blowfish” syndrome too. This setup has been working quite well for me for over a couple of months now.
The headband brand name is “Polartec” and as I recall I got mine at Sports Authority for about $15. I'm sure other sources and brands are available.
Please excuse my half-wit assistant's weird-shaped head ... comes with the job I guess.
Bret -
Have you looked into baseball caps without the bill. If you could find polyester mesh crowns with adjustable snap size fittings and add the velcro or other fastening material for the chinstrap. Then maybe you could offer several options like anit-lip flutter attachment or FF mask attachments, etc.
UPDATE EDIT**
Revised old broken photobucket image links ... also, for initial version, I first use a fleece headband then later revised/replaced with ACE bandage as it was much lighter and cooler on the face. However, I still find it much better to train your tongue to stick to roof of mouth and avoid all the added chinstrap and mouth band but it does take time to train ... so this may still help in the mean time.
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