I’m an experienced teacher and also worked for several years in children’s safeguarding. When children make disclosures, they rarely, if ever, disclose everything at once. They usually drip-feed information to test the water, ie. they will tell the least upsetting thing first, often because they are scared about upsetting a parent, getting in trouble or not being believed.
You must not just be satisfied with her first, seemingly minor, explanation. It sounds horrible to sleep on an airbed with no sheet, but that doesn’t sound enough to prompt a child to say they wish they didn’t have a dad. I feel in my gut there is a lot more to this.
You clearly don’t have the skills or confidence to handle this on your own, and your children’s next scheduled visit to their dad is fast approaching. I URGE you to take action today and contact SS for advice. Tell them that he refuses to give you the address, that your daughter has come home upset saying she doesn’t want to go back, and explain about the sleeping and food arrangements.
I’m sure you said earlier that it is a one bed flat. So why does the Dad sleep on an airbed in the same room as the children? And presumably his gf sleeps there too? They could well be having sex in the same room as your DC. He clearly is NOT in a one bed flat, it sounds like a bedsit/studio flat or a room in a HMO, in which case there is a further safeguarding issue as there will be other unknown adults living in that house and potentially posing a risk to your children. It sounds very likely that your children are having to use a shared toilet/bathroom with strangers, that is terrifying.
This is all very serious and an urgent safeguarding matter. You keep saying “I am going to do something about it”, but when?? Please contact SS TODAY