I also converted a small bedroom into a sewing room when my older GC no longer needed it for naps/overnight stays occasionally. Lo and behold DD2 presented us with a delightful GD as an "older mum" so now the cutting table is folded away and the room used for GD's travel cot when they come to us. I don't begrudge that one little bit, but it is nice when I can have my space back for myself!
We've had her for a few nights after Christmas and I'm looking forward to starting some new projects with the sewing books and patterns I got for Christmas 
Has anyone else noticed their energy levels change as they've got older?
