So, after a recent chat w/my allergist it is decided that until I start undergoing my allergy shots in early January, my furbabies are not allowed on the couch

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I have a huge, sectional and that's where they hang out ALL day, so needless to say I feel terrible that their favorite spot is going to be a dog free zone now.
I'm turning my dining room, (because it's the most open area with a huge sliding glass door out to the back porch), into their doggie "bedroom". I want to make it as comfy and similar to the living room as possible so they can have a similar room to what they are used to.
Does anyone have any suggestions on where to buy doggie "couches" that are not crazy expensive? I'd like to buy 2-3 good sized ones so I can't spend 200+ per couch.
Also, if anyone had any pictures of their dog bedrooms I would love to see them! My dining room has tile that gets a little cold so I want to make sure there are lots of warm snuggly places for the furbabies to hang out.
Thank you guys <3