I think we had some in our jacuzzi room last year, but once they needed to be cleaned and housekeeping took them away they were never replaced. D
Premier members definitely get robes, and slippers, as I stayed as premier member this past September. The riff raff do not. But really, wouldn't you rather be nekkid? It's TTR, after all.
I asked housekeeping for a robe when we had a jacuzzi room last time, because we had robes in the Temptation suites before and didn't bring one with me. They gave me one, no problem. Just ask them and a tip doesn't hurt. They also gave us 4 bottles of water every day when we asked.
I carry little wallet-sized clutch purse at night at TTR, just big enough for key, tip money, lipstick. Not a good option for the men, admittedly. The robes are quite heavy...you may find them hot to wear around the resort depending on what month you are there. And you won't want to have to keep an eye on it once you take it off. Resort will ding you if you lose it. If you really want a robe, just buy a lightweight silky one. Guys often wear a T-shirt down to lingerie Night, then take it off to go into Nice Shoes.