Mine is usually referred to as the basement....but I call it my studio! Unfinished, but it does have a huge door wall, great view and all my favorite stuff in it!

My Studio !!!!!

I vote for the "Quilter's Quarters.

Quilter's Quarters ??

Oops! I see its already been suggested!

My Wonder Cave. It keeps them wondering WHAT I am doing ! Only dog comes in uninvited but welcome.

secret haven because i've forgotten where every thing is. dont have time to straighten things up at my age have to keep sewing

I like Diva's Den !!

my cave
sounds good to me.

I call my The Lady Lounge.

I refer to it as "my happy place" but that sounds a bit pathological as in "don't disturb her, she's in her happy place right now."