My Casper mattress started out relatively firm but over the course of a year or so became pretty mushy. It significantly impacted my sleep (without me realizing

My Casper mattress started out relatively firm but over the course of a year or so became pretty mushy. It significantly impacted my sleep (without me realizing it) during a period of my life where I really would have benefited from quality sleep. I'm replacing it with a mattress from an old-school company as soon as I can. I've been sleeping on the floor in the meantime.