Hi Tracey,
She slept in the spare room on the bed, looked very cosy this morning!  She figured out the litter box as well, I took the lid off last night and then when I put it back on she was fine.  Well, I can’t believe OUR luck at finding such a sweet cat!  You can really tell she’s glad to not be cooped up anymore, she’s so curious and has explored every corner of the apartment!  I keep thinking I’ve lost her and then I’ll find her behind a random curtain or behind a cupboard, but when I call her she always comes.  She is so entertaining.
Have a great day Tracey and I’ll keep updating you, I’ll probably drive you nuts with Tilly updates and pictures!