Is there smoking rooms?

No

Can't smoke in the rooms but anywhere in the casino you can smoke except inside the shops. But if you're at playing table or machine, you're allowed to

Yes you can smoke in the rooms on 36 floor. I always ask for a smoking room because it's on the top floor so I get a better view of the strip. And now weed is legal in Nevada you can smell it in the hallways and on the streets you can not smoke weed in the CASINO just cigarettes

No, not allowed