I believe The Viper Rooms, Sunbridge Wells, Bradford is no longer operating.
The Viper Rooms

The bar is not mentioned on The Viper Rooms website: https://www.theviperrooms.com/

It's not included on the Sunbridge Wells pages starting at: https://www.sunbridgewells.com/

Thirdly I couldn't physically find it, and the Sunbridge Wells intenal sign posts do not mention it.

Pubs Galore has entries for the bars on the Sunbridge Wells website first page apart from something named 'The HideOut'.
I located this but it was closed. I took a photograph of the signage - for what it's worth. The name is entirely appropriate as it is not easily found.

It is my conjecture then that The Viper Rooms was reopened as The HideOut.

Launched in November 2019 - The HideOut, Sunbridge Wells.
Facebook: https://www.facebook.com/pg/The-Hide...01080654671559
It describes itself as a cocktail lounge.

John Yeadon