Steph, the news continues excellent! Sleeping near each other -- a definite yes!! The negotiations seem to be going well.
I remember Shasta when Gryph and Nibs came to us -- Shasta who had been an only cat for 14 years. I was a traitor first class. She did get over it, but she wasn't sleeping by my side this soon, let alone with either of the guys that near! And there continued to be some swearing at the guys for a long time -- for the human's benefit, I am certain, because it also wasn't unusual to come upon her with one of them, when they didn't expect to be seen, being very lovey, and for that behaviour to be abruptly stopped, when they became aware of my presence.
Mustn't let the human know.
Glad Miss Sierra remains healthy and Miss Serenity's symptoms seem to be clearing. Scritches for both of them, and
for their very special Mum.