“90 Day Fiancé” stars Sarper and Shekinah simply pulled a quick one on followers — ditching the aisle for a “bedding” ceremony as a substitute … and now they’re telling us it is all about that between-the-sheets bliss.

TMZ caught up with the fact duo, and so they inform us they’re so obsessive about mattress life, they even eat all their meals there — including that if you recognize them nicely, a “bedding” ceremony tracks … something much less would’ve been off-brand.

Catch the clip — they break down why the entire thought of marriage freaks them out, and the way this unconventional route makes it method much less terrifying.

Additionally they spill on how their households took the information … Sarper says his dad even cracked a joke, asking if the marriage’s in mattress — does that imply the honeymoon’s in the bathroom? LOL.