Pronoun Trouble

Honestly, it's one I actually manage to do, so it's a couple notches down from the top on my personal challenge rating system.

My mattress is in the same position of no flip, only rotate, but the site I ordered it from (EcoTerra?) gave me ten years for it, so I'm hoping that'll hold true. I spent some of my Covid check on it, and have generally enjoyed it, so I'm doing my best to follow the directions and keep it, uh, "healthy".