Uhhh, are you sure about that? My ten dollar sleep mask from walgreen doesn't touch my eyes, I don't think it even touches my lashes. Meanwhile every mask I've tried buying online has fit terribly.
It sounds like your mask is a bit better, and probably more expensive that the parent means. I've gotten such cheap masks as giveaways and the few I tried were indeed unbearable for sleeping as it felt like someone was crushing my face.