Shuffling a Child between 3 to 4 different households

Poor wee child, surely something will have to be settled before she reaches school age? You don’t say why all this shuffling is going on but maybe a big family pow wow is required to look at alternatives & come up with a strategy that would be more beneficial to this baby’s security & peace of mind? If you can think of anyway at all that this shuffling could be smoothed out for the benefit of your dear little one, that is something to take to the family gathering for discussion. You could build in some “review dates” so that contributors don’t feel trapped by plans?
It’s hard to know how best to advise you but this is not something to be shouldered alone. The baby’s entire family need to be pulled in yo come up with a better modus operandi. Sleeping on sofas and floors are not good for anyone.
I do hope you can facilitate a better way forward for this dear child. I’m sure the wise ones will come along with better ideas.