115 lb. side/back sleeper

Looking into a Queen Ultimate Hybrid Coil/Latex APM and wondering if the Medium 3" Natural Talalay latex sounds appropriate for me, 115 lbs side/back sleeper. Also, is
it possible at checkout to specifically request Radium Latex for this 3" of Talalay ?
Thanks!

I would go with the Plush Talalay and you should Request Radium only in the Comment Section when checking out