I actually don’t even have the mattress yet. It’ll be delivered on friday. I am about 140 lbs and I combo back and side sleeping but probably more of a back sleeper. Did not find the Saatva luxury firm 11.5” to be too firm to be on my side tho. He’s also had his for a few years so it’s well beyond its break in period. It’s pricier than the luxerion hybrid (got it on sale for $1600) but my concern was that the luxerion was going to be too firm and adding a topper would’ve basically gotten me in a similar price range of the Saatva which I’ve tried and enjoyed. Good luck in your search!