Top priorities include luxury bedding, food, and pet grooming - although some survey respondents had requests that would make even Mariah's antics look pedestrian.
The most bizarre suggestions came from China, where pet owners said they would ask for "jamon iberico and caviar", "unlimited playtime", and "a sausage dog girlfriend".
Mariah's home country also scored highly in the oddball stakes, with one American woman saying she'd spoil her pooch with "blueberry facials", and another wanting to go "bird watching at the zoo" with her cat.
In response to the bizarre requests, SLH has selected some of the top luxury hotels currently offering pet-friendly services.
In the UK, the Lainston House hotel in Winchester offers a VIP (Very Important Pooch) package, with dogs receiving their own bed, water and food bowls, poop bags and a special treat. Several of the rooms also have doors leading straight out to the hotel grounds.
Those looking for a more unusual stay should head to the Hoteldorf Grüner Baum in Bad Gastein, Austria, a wellbeing retreat where dogs can train in a play meadow and receive consultations from an expert dog trainer. Massages and lymphatic drainage are available, and a Fitness for Older Dogs programme.
The Belmond Hotel Splendido in Portofino, Italy, has bathrobes for pooches. It offers dog massages, a room service menu of canine treats, a dog walking service and a taxi to transport pets to and from grooming appointments.
Italy is clearly the top destination for pet lovers, coming out top in a survey of Europe's most pet-friendly cities conducted by holiday rental website Airbnb; it currently lists 30,000 Italian properties happy to accept pets.
So if Mariah is stuck for ideas on where to take her pooches next year, she might want to consider the land of pizza and pasta.
- AAP