Sleeping arrangements in ex partners new house

[Sarahloo88]

So contact resumed between my ex partner and our children a little over 2 weeks ago. We have a 4 year old and a one year old.

They sleep over twice a week, my ex said the one year old would be in a travel cot and the 4 year old would be in a double bed with him. Each time they’ve slept over my 4 year old has slept with his father on a single mattress on the living room floor while the baby sleeps alone upstairs in the travel cot. I’m really confused by this as there is an empty double bed in the bedroom.
I asked him about it and aside from the abuse I’ve received he said sleeping on a mattress is fine for our 4 year old and the baby is fine upstairs as it’s all open plan (no doors) and basically to mind my own business. This isn’t a short term thing, this is the sleeping arrangement for the foreseeable. Am I being unreasonable by saying he needs to sleep in a proper bed when he’s there and the baby shouldn’t be upstairs on his own all night?
I don’t like the thought of him sleeping on a mattress on the floor. He goes to school the next morning and I just think it’s important he has a good nights sleep on a decent bed.

Our second dc slept on a mattress on the floor for his first 7 years because there wasn't the space for a 'proper' bed. He was/is absolutely fine.

I guess it's a bit odd that exp isn't choosing to sleep downstairs on the mattress and let both dc sleep upstairs, one in the bed and one in the travel cot.

It's a bit odd when there is a bed there but it's up to his father where he sleeps when he's with him. A mattress is acceptable.

It's maybe a bit odd but sleeping on a mattress is totally fine.

There is nothing wrong with sleeping in a mattress in the floor. I wouldn't want a baby sleeping in a different floor to everyone else.

Does he use a monitor for the baby? If he isn't then perhaps suggest he does.

But otherwise there is nothing you can do I'm afraid.

A mattress is the same mattress, whether on the floor or in a bed frame. But agree, it's weird. Why would you not sleep in a bed and sleep on the floor? Very odd.

Yeah I wouldnt be happy with this, does he use a baby monitor? Either way with bitter experience I can say there isn't much you can do op, as shit as it is

Is it just a one bedroom place?

It sounds fine, I would find it difficult with a one year old in a cot in the same room.

Sleeping on the mattress is fine but it is strange why if there's a bed you wouldn't choose that over the floor

I am guessing he either has or is thinking about having a partner. If he starts sleeping in the main bedroom with your child it will be difficult if he then needs to move him out. He may of course already have a partner and be thinking about the partner sleeping over and having an issue with your child expecting to sleep in the bed.

Maybe eventually he wants the 4 years old to sleep by themselves in the single bed and he will go upstairs. He is sort of right that it isn’t really any of business. It’s not actually doing any harm is it?

Who is in the double bed?