Familiar claiming all the good furniture

I have taken great pains to fill my tower with the finest of couches: couches enchanted to be the most comfortable seat on which you've ever sat. I find that exploring the mysteries of the outer planes is such a better experience with my ass planted on fine, stuffed, owlbear pelts.

My familiar, however, has decided that my typical orb-pondering spot is actually his new nap pad. I am concerned that if I try to set up a spell barrier to keep this furry little asshole off the sofa, he might stop allowing me to take his fur and droppings for my spell components.

Has anyone had any success restricting their familiar's nap spots with minimum consequences? All advice appreciated.