copied from r/furniture, trying to find a floor couch for the living room

sorry if this doesnt fit this subs rules i know this is mostly for DIY stuff and ideally i would DIY but i dont have a wood shop and this is for my parents house. the post was removed from r/furniture even though i followed the rules.

where to get an actual floor sofa with a wood back/base? NOT just a bunch of modular cushions labeled a "couch".

located in Pennsylvania USA. looking for a floor couch, no more than 36" wide (left to right idk how to measure a couch) and preferably no more than $200. i don't know if im using the wrong search terms or what. my friend has one at his place but he got it off fb so all the details are unknown. it's got a flat piece of wood touching the floor and another flat piece of wood at an angle for the back and it's super sturdy. the cushioning is part of the couch like its all one piece. there are no legs and no arms. how do i find one of these? i dont have any pictures either. sorry. it would be perfect for the living room in front of the coffee table. i need something sturdy that wont crumble if a 300lb 6' human leans back on it. i'm willing to settle for just the base and making my own cushions for it but i dont even know where to get like a wooden bench base.

TLDR:

pennsylvania USA

LF Wooden floor couch (NO LEGS no arms)

budget $200

size 36inches wide

not super picky about style, ideally the wood is on the dark side and the cushiony part is red but im fine with doing a bit of customization.

MUST BE STURDY.

PLACES IVE LOOKED: Google, FB Marketplace, Amazon, Re Store, Walmart, Target, DuckDuckGo, AliExpress

i'm fine with buying online or in person. no preference.