I just joined the forum. I am highly frustrated because it's been several months since I've had a decent night's sleep. I've been using a CPAP with a Swift FX nasal pillow since my diagnosis of severe OSA 4 years ago. I'm not sure what stopped working wonders several months ago, my machine or my mask, but my doctor and I are trying a mask change first. I now use a Swift FX nasal mask, which I'm hoping will make a difference. It's definitely more comfortable for me than the pillow was since I no longer have mask parts in my nostrils.