About fifteen years ago I found myself in Rostov-on-Don, Russia -- not all that far away from Sochi, but a "real" city, not something created for a one-time sporting venue. It was winter. I stayed at the official Intourist hotel, which was supposedly the best (if not the only) hotel in the city.
My room had twin beds ... and no heat. The first night I stole all the bedding from the second bed in a futile attempt to pile enough stuff over me to stay warm. The second night I took a VERY long bath ... meaning that I basically filled the tub with water as hot as I could take, immersed myself fully, and dozed off. When the water cooled enough to wake me, I just repeated the process.
Russia really doesn't have a clue.