Would we get away with this at the hotel?

Do it.
Life is hard enough with a child who has autism so do whatever makes it easier/better.

Personally I wouldn't do this - we were in a hotel on Denmark recently and someone tried to get 3 adults.in a room. The hotel.(chain) cancelled their booking. I was actually waiting in reception when it happened. Surely it could spoil your whole holiday, and I am sure they look out for this as people probably try it on all the time.

😂😂😂

Think you would be better talking to them in the first place about the autism. They might give a discount on second room. Don’t think they’d just allow three adults as one of the beds might not be strong enough.

Also will your DD be there at check in, in case you do meet reception staff. Would she be able to deal with the lie (if she would understand it) or pipe up with the truth? I would half at her age as ASD made me want accuracy. That would be true even if I didn’t know we were doing something wrong.

breaches contract with the hotel so risk of booking cancellation

The numbers will not be used by emergency services.
However they are important because the maximum guests are used when working out long it should take to evacuate the hotel If a quarter of rooms have an extra person that would make a big difference, though I don’t know how may extras they add in during the emergency plans. for people who sneak someone in.

We do it regularly at Premier Inn airport hotels.
You can't book a triple room for 3 adults.
But all the rooms are the same where we go - double bed and a chair/chaise which can become a bed.

So we book dd in as a 'child' - she is a few years over 15y now but doesn't look very old.

But equally no one cares and it happens all the time - parents and younger adult child, 3 young adults, 3 older adults, etc.

Never once had it questioned.

We don't use the breakfast service so we aren't benefiting from 'free' food.

And it's an airport hotel - we are normally there for a relative;y short time and leaving very early.

We did this after calling them to book once. We'd been told they'd allow you to book for 3 adults on the phone but not online. The person answering simple]y did the booking but also told us that in future to just book 2 adults, 1 child if we wanted to do it online as it's what they do anyway.

This is a myth.
They have no idea how many people are currently in a hotel or not generally. You don't clock in and out of a hotel.

This. It's really impersonal, the staff are overworked/underpaid and, although reasonably helpful if you ask for things, really won't care.

You can get Deliveroo etc. and pick it up outside the hotel. We found this really helpful when our DC was a bit wired and over-tired in the evening.

Just do it. I’m sure you aren’t the first or last. I wouldn’t ask the hotel as they’ll be onto you after they’ve refused. All they care about is money so will say it’s not possible to accommodate to get you to book more. Stick to your original plan OP. I’m sure you’ll be fine

To give a contrary view, my 6ft 2 husband managed to sleep on the lower bunk when we stayed at the Legoland hotel. Our now 7yo was going through a period of having frequent nightmares and so wanted to share the big bed with me. DH didn't claim to have had the most comfortable sleep of his life but neither did he moan about it, which he would have if it had been really awful.

I take it you have never heard of people meeting people and bringing them back to your hotel room. Nobody checks them in first.

You don't even need to speak to a person to check in at Legoland, you check in in advance online and then collect a key from a touchscreen point. One of you can do that alone. Nobody there will notice. They wouldn't notice you moving around the hotel even if you weren't staying there! The bunk beds are really small though, the pull out trundle (5th bed) might be better

Tell them you identify as a child.

Job done 🤩

I was at a group holiday when one couple booked as a single as the husband was joining later - they did find out and I think they had to pay the difference. I wasn't involved as i was just on my own in my own room.

Oh wonderful! Good to hear.

We’ve never been but used to live close by. Everyone I know that’s been has raved about it

Is Lapland UK any good? Have you read reviews? I would definitely want to do that before splashing out on hotel rooms. We are not always great at organising this stuff here!

Tell me you haven’t read the thread without telling me you haven’t read the thread.

Do it. Honestly hard enough as it is with a child on the spectrum.

This is mumsnet so everyone will be along to tell you how outrageously unethical this is shortly.

Oh no they won't!

I haven't RTFT but on MN any business is ripe for the ripping off, so I'd think most will encourage OP to scam it.

I can’t beleive someone actually wrote they might press charges and it was illegal. I’m actually second hand embarassed for that level of hysteria, 😳

If it’s a big hotel, which I’d assume a Legoland hotel is, nobody will notice.

As your child is disabled, and you have a need for three adults to care for her, the hotel should accommodate you all in one room.

If there was a fire, the hotel staff wouldn't know that they had to account for your extra person...

I get this as a possible issue.. but.. how do they know how many people are in the room anyway? No-one's tagging people in and out - everyone could have popped to tescos, but they'll have to check all the rooms anyway.

By using 20% more of the bed? Causing 20% more wear and tear on the mattress? Catch yourself on!