Father & daughter sleep in one bed?

Hi there,

Just a question because i have sleeples nights from this.
My ex husband and i are devorced for 1 year. During the devorce i slept in my girls room till i left the house.
My daughter slept for a couple of month with her father in bed, because she felt safe.
But a year later, my girl sleeps still with her father in one bed!! She is 12 and doenst want to sleep in her own bedroom anymore, also because the room is not kept clean. But most of all, she is used to it to sleep with her father. we do co-parentiong and in my house she has her own room and no problems to sit and sleep there.
The father is not open to learn her to sleep in her own bed. I tried to talk to him what it can course on a longer term but he does not take any action.
I feel sick thinking of it!!

What do u think of this issue and what would u do about it?
Please..

Suza X