Snugz Mask Liners, by WakeWellReviews of sleepsnugz.com

They seem to be interfering my seal. I can hear more air seeping out than before use.

It was to tight on my nose couldn't us it

Product is not designed to fit my mask!

I’ve tried the mask liner for 4 nights. Very disappointed - it did nothing to stop the air leaks. In fact, the leaks were so prominent that I ended up taking the mask off. No adjustment helped.

The mask liners arrived quickly but my CPAP machine won't accept them. It just keeps messaging that my mask seal won't seal. I think it's a very good idea for a liner and good quality but it wouldn't work for me.

My experience with this product was that it restricted the air that came from the CPAP mask and found that my mouth was more open than normal. I had to get up in the middle of the night to remove the product to get a good night's sleep.

I am not truly satisfied with the product. Fitment was subpar. Made it really hard to continue to use.

They did not work for me. I tried them for three nights, big air leaks. I tried many different ways, because they we comfortable. I just wish you had a return policy for unsatisfied customers. A wasted $30.