She did finally downsize the 'tower' once the babies were born.
Its been 48 hours since the birthing and it seems that all 18 are still alive and kicking!!
Keeping fingers crossed!!
(for those that didnt read it on my other post, Mason's cage has a clear bottom and I having it sitting on top of a glass table....you can lay on the floor and look up and see her and the babies, at times, through the glass when she moves around/feeds them etc. The nest is not touched/disturbed at all.) I did take a photo and then zoomed in and counted heads and came up twice with 18!
She only left the nest and didnt cover it (once) when she came out for a treat yesterday, every other time she has been a good mommy and keeps them all well hidden from view from the top.