The biggest hotel guest faux pas have been revealed - including jumping the breakfast buffet queue, washing undergarments in kettles and stealing from rooms.
Other sins include reserving pool chairs with towels for long periods, leaving rooms excessively messy and being loud in the hallways late at night.
Smoking or vaping in hotel rooms is a no-no, as are putting the incorrect number of guests on the reservation and leaving alarms or phones to ring without turning them off.
Not collecting hotel reward points and not reading the reviews when booking were also deemed faux pas by the 2,000 adults polled.
Researchers found the vast majority (90 per cent) consider themselves to be considerate guests - although 39 per cent think residents have become less respectful in recent years.
The research was commissioned by Hotels.com [https://uk.hotels.com/welcome-hotels-rewards] which offers guests £100 off future bookings once they've stayed somewhere for a total of 10 nights.
Melanie Fish, travel expert and spokesperson for the booking platform which has also teamed-up with William Hanson for a ‘Grand Etiquette Hotel’ guide, said: “Small tweaks can make a world of a difference.
“Taking the time to check reviews or making the most of rewards can turn a good trip into a great one, and help your travel budget stretch further, too.”
Other divisive acts include hanging damp laundry on the balcony, not leaving a review after staying and being rude to staff.
With sneaking extra guests in and constant PDA around the pool also frowned upon by hotel stayers.
Those polled were also asked which nationalities they consider to be the gold standard for politeness – and which ones they perceive to be rudest.
Japanese tourists came top for being most considerate followed by Sweden in second place, with UK respondents placing themselves third.
At the other end of the scale Americans are regarded as the most impolite, just beneath those from Germany, according to the Hotels.com research carried out through OnePoll.
William Hanson said: “Better hotel etiquette doesn’t just benefit others, it can directly enhance your own stay.
“At the heart of my guide is the idea that small, thoughtful behaviours add up to big rewards: from a better night’s sleep and improved service to savings on future trips.”
TOP 25 BIGGEST HOTEL FAUX PAS
- Being rude to hotel staff
- Being really loud (e.g., loud hallway conversations, blasting music late at night or early in the morning)
- Putting the incorrect number of guests on the reservation
- Becoming drunk and annoying other guests
- Not reading the reviews when booking
- Smoking or vaping in hotel rooms
- Not looking at the pictures when booking
- Leaving rooms excessively messy at check-out
- Washing undergarments or personal items in the in‑room coffee maker
- Stealing items you’re not supposed to from the room
- Jumping the queue at the hotel breakfast buffet
- Reserving pool or beach chairs with towels or personal belongings for long periods
- Playing music on a personal speaker at the pool
- Allowing pets at the table in the hotel restaurant
- Bringing children into the adults‑only pool
- Sneaking extra guests into rooms
- Walking through hotel hallways or common areas wearing only a robe or sleepwear
- Not collecting reward points or discounts
- Not checking out on time
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Leaving rubbish or room‑service trays in the hallway