The London-born star will also be given access to a £30,000-a-night ($60,425) private suite throughout her residency.
The insider told the Sun newspaper: "Caesars has rolled out the red carpet to ensure she's treated like the superstar she is."
The Easy on Me hitmaker - who announced her Las Vegas residency in November - will also have a chauffeur and security throughout her live shows, which run from January 21 until April 16.
Adele released her long-awaited fourth album, 30, last year, and she admitted that she's recently rediscovered her love of music, after her passion waned for a period of time.
She explained: "I definitely feel like I lost sight of and lost the appreciation of what a gift it is to be into music and be able to make it.
"I think I got a bit frightened of it for a while and it really, really took care of me big time. Not just making this record, my own record, but diving back into old records of other people's that I loved, discovering new artists on SoundCloud or whatever."