Reddit mentions of Dreamwear Full Face Replacement Headgear

The frame is used for all three mask types. For both the nasal cushion and nasal pillows you use this headgear: https://www.amazon.com/dp/B07KYJRVWV/ref=cm_sw_r_cp_api_i_HBIxDbFQRCM10

For the full face you need: https://www.amazon.com/dp/B07HHDCQTX/ref=cm_sw_r_cp_api_i_IFIxDbE6KAY9Z

Then you can use any of the masks: pillows, cushion, or full face. They just kind of clip into the frame.

I have never tried the pillows, but the cushion just sits under your nose and is held in place by the frame and headgear. The full face sits under the nose just like the cushion but also covers your mouth. The seal was excellent on the full face, I could actually open and close my mouth without the seal breaking which I could not do with the Amara View. The headgear for the full mask has straps to hold the bottom of the mask in place. As long as everything is adjusted right for you the masks seal is created just by the air pressure in the mask and stays put very well. The only issue you might have to deal with is the seal around your nose but it usually is just a quick tweak and you are good to go. I honestly didn’t even have many issues with the seal around the nose compared to the Amara View which was constantly needing tweaking, I could just throw on the Dreamwear and fall asleep with no leaks.