I've found Dreamwear still available on Amazon - just got the FFM as a Subscribe and Save item,

https://www.amazon.com/gp/product/B07HHF1J7D

and I've found a listing for the FFM headgear

https://www.amazon.com/DreamWear-Full_Face-Headgear-Magnetic-Clips/dp/B07FCWT3Q9

Hope this helps!