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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

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To think my sibling is being totally unreasonable about sleeping arrangements on this trip?

1000 replies

jd206 · 12/02/2025 18:45

Posting here for traffic because I need to know if I’m being mad or if my sibling is just being ridiculous.

We (me, DH, DCs, my sibling, and their DP) are going on a family trip soon. It’s been planned for ages, all agreed and booked. We’re staying in a big Airbnb-type place with multiple bedrooms. The plan was that DH and I would have one room, DCs in another, and my sibling and their DP in the third. There’s also a small box room with a single bed, which was just going to be a spare in case anyone needed it.

Now, sibling has suddenly decided that they don’t want to share a room with their DP because “they sleep badly together” (which is apparently news to everyone, including DP!). They’ve said they’ll be taking the box room instead, which means DP will now have to share with one of my DCs (who is 6 and not thrilled at the idea of sharing with an adult they barely know that well).

I told them that’s not fair and that they need to just suck it up and share with their DP as planned. They’re now saying I’m being unreasonable and need to be more flexible, and that the sleeping arrangements aren’t set in stone. But surely you don’t just unilaterally change things like this last minute?!

DM has now waded in and is backing sibling, saying I’m being selfish and that we should “find a compromise” (but what compromise? DH and I aren’t going to split up for the sake of their random issue).

So, AIBU to think my sibling is being totally unfair and should just stick to the original plan? Or am I missing something here?

TL;DR: Sibling suddenly refusing to share with their DP on a trip, wants to take the spare room, leaving their DP to bunk with my child. I’ve said no, now I’m the bad guy. Who’s BU here?

OP posts:
Thread gallery
9
ChristmasPudd1990 · 12/02/2025 19:09

You are making a drama out of nothing 😤

Hoppinggreen · 12/02/2025 19:09

Obscurial · 12/02/2025 19:07

Did you have other plans for the spare room?

Sewing room?

Togglebullets · 12/02/2025 19:09

HomeworkMonitor · 12/02/2025 19:07

I think I've realised what has happened. Accommodation bill split 50/50.

OP and DH in room 1.

OPs DCs in room 2.

Sibling and DP in room 3, and
Box room 'spare'

but OP was going to slip her 6yr old in there 'not as a permanent bedroom, just a place for 6yr old to sleep (CF tactics).

Sibling has caught wind and is asking for box room to stop OP CF from slipping her 6yr in there. Now OP irritated as she thought she was getting 3 rooms for the price of 2 ! I just bet this is the scenario

That's exactly what this confusing thread needs - someone making up an imaginary scenario...

CandyLeBonBon · 12/02/2025 19:09

Maybe the box room has an interesting wardrobe that leads to a strange snowy land and Op doesn't want anyone else to find it?

Catza · 12/02/2025 19:09

HomeworkMonitor · 12/02/2025 19:07

I think I've realised what has happened. Accommodation bill split 50/50.

OP and DH in room 1.

OPs DCs in room 2.

Sibling and DP in room 3, and
Box room 'spare'

but OP was going to slip her 6yr old in there 'not as a permanent bedroom, just a place for 6yr old to sleep (CF tactics).

Sibling has caught wind and is asking for box room to stop OP CF from slipping her 6yr in there. Now OP irritated as she thought she was getting 3 rooms for the price of 2 ! I just bet this is the scenario

This seems to be the most plausible explanation to this madness. Still not sure how she came to the conclusion that her child has to share with BIL, though.

Coffeeishot · 12/02/2025 19:09

HomeworkMonitor · 12/02/2025 19:07

I think I've realised what has happened. Accommodation bill split 50/50.

OP and DH in room 1.

OPs DCs in room 2.

Sibling and DP in room 3, and
Box room 'spare'

but OP was going to slip her 6yr old in there 'not as a permanent bedroom, just a place for 6yr old to sleep (CF tactics).

Sibling has caught wind and is asking for box room to stop OP CF from slipping her 6yr in there. Now OP irritated as she thought she was getting 3 rooms for the price of 2 ! I just bet this is the scenario

Oo sneaky 😀

PuppiesProzacProsecco · 12/02/2025 19:09

I'm not surprised that your mum and sister are pissed off with you OP. You're either exceptionally daft or ridiculously awkward.

friendlycat · 12/02/2025 19:10

I’m not understanding this either.

niadainud · 12/02/2025 19:10

ChonkyRabbit · 12/02/2025 19:08

I don't know why everybody is struggling to understand. Of course your grandfather should get the fifth bedroom, the twins should share the bunk beds, and your vegan aunt should bring some oat milk. Sorted.

Don't forget that the hamster requires its own room with en suite.

LipstickGhosts · 12/02/2025 19:10

HomeworkMonitor · 12/02/2025 19:07

I think I've realised what has happened. Accommodation bill split 50/50.

OP and DH in room 1.

OPs DCs in room 2.

Sibling and DP in room 3, and
Box room 'spare'

but OP was going to slip her 6yr old in there 'not as a permanent bedroom, just a place for 6yr old to sleep (CF tactics).

Sibling has caught wind and is asking for box room to stop OP CF from slipping her 6yr in there. Now OP irritated as she thought she was getting 3 rooms for the price of 2 ! I just bet this is the scenario

Either that, or the OP paid two thirds and sibling a third to reflect that OP's family were using two rooms and sibling one? And now sibling wants 50% of the space.

I still can't understand how the OP has decided this means her six year old has to share with the adult partner of sibling though; no one would ever reach that conclusion when there is a whole other room in the property!

ValentineValentineV · 12/02/2025 19:10

HomeworkMonitor · 12/02/2025 19:07

I think I've realised what has happened. Accommodation bill split 50/50.

OP and DH in room 1.

OPs DCs in room 2.

Sibling and DP in room 3, and
Box room 'spare'

but OP was going to slip her 6yr old in there 'not as a permanent bedroom, just a place for 6yr old to sleep (CF tactics).

Sibling has caught wind and is asking for box room to stop OP CF from slipping her 6yr in there. Now OP irritated as she thought she was getting 3 rooms for the price of 2 ! I just bet this is the scenario

Oh yes the sneaky DC sharing but not really sharing with each other tactic.

ModernLife1sRubbish · 12/02/2025 19:10

I really think you should keep at least 2 or 3 rooms free. What if more than one person feels ill? How about:

Room 1 - you and DP
Bathroom - sibling
Car - sibling's DP
Porch - Children
Room 2 - spare
Room 3 - spare
Room 4 - spare

Thank me later.

Livelaughlurgy · 12/02/2025 19:10

You made a mistake when you wrote it out. Happens to the best of us. I'd abandon this one and start afresh again another day. Best of luck in your endeavors.

itsgettingweird · 12/02/2025 19:11

I'm glad I'm not the joy confused person around here!

OP. You need to flex a little. The box room is spare. It can be used by your sibling or their DP.

Your issue is you won't move from the idea it's spare and needs to rema8n empty.

If your Dsibling is paying half then I'm not surprised they are making dibs in the "spare" room.

If they aren't then rearrange the cost split as you are both using 2 of the rooms.

Split it into 7. Then times 4 for 2 doubles and 3 for double and single.

So if it costs £700 you and DH pay £400 and them £300.

Fizbosshoes · 12/02/2025 19:11

Nothing makes sense.
There are 3 bedrooms and a boxroom, the boxroom was going to be spare but now sibling or their DP will have it.....but how does that affect anyone else?

Maybe a diagram would help? 🤣

Springadorable · 12/02/2025 19:11

OP you are clearly unreasonable as noone has a clue what you are on about.

Obscurial · 12/02/2025 19:11

CandyLeBonBon · 12/02/2025 19:09

Maybe the box room has an interesting wardrobe that leads to a strange snowy land and Op doesn't want anyone else to find it?

OMG I THINK I’VE STAYED THERE!

YANBU at all op. Keep the spare oom spare, there’s delicious Turkish delight in there!

ThankULord · 12/02/2025 19:11

I think OP is playing the role of sibling.
And is going to show Sibling the responses on this thread. So sibling can see how ridiculous they are being.
That's the only thing that makes a LITTLE bit of sense.
Not a lot, just a little.

jd206 · 12/02/2025 19:11

sandyhappypeople · 12/02/2025 19:07

No wonder your mum is wading in to this too.. you are demanding to keep a bedroom empty for no reason whatsoever!

You are the one being unreasonable.

Why is it so important to you that no one uses the box room?

It’s not about keeping the room empty for no reason, it’s about the fact that the original plan worked for everyone, and now my sibling is unilaterally changing things to suit themselves, which has a knock-on effect on my DC. The box room was always just a spare—not a main bedroom—so there was a reason for it not being assigned.

If they’d said from the start they didn’t want to share with their DP, we could have worked something out. But deciding last minute that their DP has to bunk with my 6yo instead? That’s not fair. Why should my child’s sleeping arrangements be disrupted just because my sibling doesn’t fancy sharing a bed?

OP posts:
SlightlyJaded · 12/02/2025 19:12

Batshit
Diagram required for clarification

ValentineValentineV · 12/02/2025 19:12

Or they could all sleep in one room and have three spare rooms just in case anyone needs them.

IsitaHatOrACat · 12/02/2025 19:12

It's simple: kids share with you and DH leaving room 2 spare. When they need a break or are ill they go back in room 2...
Or just do that from the start?

Hoppinggreen · 12/02/2025 19:12

I think they should all sleep in the cars and have 4 empty bedrooms
Why should the 6 year old be expected to share a house with their aunt/uncle?

JimHalpertsWife · 12/02/2025 19:12

Who needs a sanitorium on a bog standard week away? Are any of you prone to bouts of cholera?

Spirallingdownwards · 12/02/2025 19:12

jd206 · 12/02/2025 18:59

Because it wasn’t meant to be a permanent bedroom, just a spare in case someone was ill, needed a break, etc. The plan was always that everyone would share appropriately. My sibling is the one changing things last minute and making it awkward for everyone else. Why should their DP have to share with my DC just because they’ve suddenly decided they don’t fancy sharing a bed?

Your explanation is even more bonkers.

The DP is staying on their room. Your sister is taking the spare.

You don't need an empty room just in case someone is ill. If they are rejigged then.

Are you paying 3/4 of the rental and basically don't want them using 2 rooms?

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