To be really uncomfortable about this?

There is good reason for this.

Nobody would be questioning this if it was a mother TBH...

The hotel made a mistake and should fix it. He should be insisting on what was booked.

I don’t necessarily think them sharing a bed is of itself a concern, but it might complicate your DD’s understanding of appropriate boundaries with other people. As a responsible parent he ought to be sensitive to that possibility.

Not sure why it is inappropriate. I shared a bed with my dad during various trips, when there was no other option. What's exactly the concern?

I would expect Dad to ask for twin beds at least.

Sharing a bed is a bit strange. I would have been horrified to share a bed with my dad as a teenager. And he would with me.
Were two interconnecting rooms booked ? All a bit odd.

I'd rather have slept on the balcony than share a bed with my dad at 14. Not because he was a wrong 'un but I would've died with embarrassment and felt uncomfortable. I can't imagine many teenage girls would relish the thought.

He should absolutely know that she is entitled to her space.
A mattress should be brought to the room.
Yanbu.
At the very least he is being very dim.

No I think you did fine! If your DD was still a child I don’t think you’d be writing this post.
Find it odd others aren’t seeing that. YANBU contrary to the majority on here IMO!

I don’t think it is a problem if DD is ok with but I would say that if it is for a week they should ask if an alternative room is available or becomes available later on in the week so that they can move.

The idea that it's inappropriate makes it seem like you think he's likely to try and SA his own daughter.

If you think that why are you allowing him contact unsupervised at all?

Would you think it inappropriate for you and teen son to have to share a double bed if there was a mix up on holiday. And your son wasn't bothered?

I would also feel uncomfortable because I would have felt uncomfortable sharing a bed with my dad, at any age tbh. Not for any nefarious reasons, I just would have.

But, I think if you can have a private word with your daughter and she's ok with it, then I would have to stamp on my own personal feelings about it.

Is the worry that she wouldn't say anything even if she didn't like or that he would dismiss her if she did?

I'd hate that at her age or any age tbh
Depends how she feels though.
I don't think it's necessarily inappropriate in a weird way, but I wouldn't be able to sleep easily

I think a lot of teenagers who have a good relationship with their parent would be secretly delighted that they got to be a baby again and be close to their parent. I could see my two teenagers complaining about farting and snoring but deep down being happy to have an excuse for a closeness that usually ends in childhood. The only concern would be around abuse - if that concern exists surely sharing a bed is pretty much irrelevant as the whole situation is unsafe?

Ive shared a bed with my DS recently in a hotel and he’s 17.

I wouldn’t have an issue with DH and 13 yr old DD sharing a bed

if she’s ok about it then its ok

I wouldn’t share with my DD at that age and I’m a woman.

It wouldn’t bother me but she’s a teen and wouldn’t want to share with an adult.

If we stay over anyone’s, one of us will sleep on the floor/sofa.
We don’t share.

If I’d paid for 2 beds I’d be kicking up a fuss until I got them.

I think you could also see it as they are already having to do all of those things for the sake of a bit of privacy, the least she could have is her own bed.
One night is not really comparable.

Perhaps not ideal but it wouldn't bother me in those circumstances.

I don't understand all the comments about a teenager needing privacy, particularly if the setup was supposed to be two single beds in the same room anyway.

Surely dad and daughter would shower, dress/undress in the bathroom which is the only place either of them in this situation needs to be naked.

I shared a bed with my 13 year old son one night due to similar issues as neither of us wanted to sleep on the floor! Would people think it was suspicious that I didn't kick up a fuss or is it just men who are subjected to questioning their motives?

People are different. I wouldn’t have particularly wanted to share a bed with my mum at that age either.

Mother sharing bed with 14 year old son would be inappropriate imo!

My husband and young adult daughter would probably roll their eyes and work out something. They would probably tolerate one night and jointly decide that things have to change after that. My daughter would want her privacy and my husband would respect that.

They would probably muddle through with one evening and then insist on a change after that.

They shared a tent at 13 and there were no issues.

When I was fifteen, my parents had separated but my mum asked my dad to stay in the house for a week because she had to go to a work conference.
One night he was downstairs in my older siblings old bedroom watching a movie sitting on her old double bed.
He asked me to come and get on the bed and watch the movie with him. Immediately my guard went up. I said No, and I went upstairs and locked myself in my bedroom. I had never had such a strong reaction but I had been uncomfortable before because he still treated me like a small kid. I said nothing because I didn’t want to upset him. This time I said no and after that I kept up those boundaries.
So, that is colouring my judgement, but I at least would want to speak to my daughter privately to make sure she really is ok with it.
If my daughter was older and in this situation, I would completely and utterly trust my own partner (her dad). My concern would be that she wasn’t really comfortable with it. But I would bet that in this situation, my dp would probably be sleeping on the floor anyway.
I don’t know the OP or her ex, and can’t judge on that basis. I just think if any part of her isn’t happy with it, she shouldn’t just ignore it.

So rather than having twin beds in the same room, they have one large bed? Not ideal but all the people saying he needs to give her privacy haven't understood the issue as they were going to share a room anyway.

No big deal. It's only a few days and of course if a mother had to share with her 14 year old DS, nobody would be batting an eyelid. Typical MN all men are perverts rhetoric.