I've been scouring the list of Whitby B&Bs on Trip Advisor to find places with twin rooms available. I will be staying for three nights (Friday, Saturday, Sunday) in June 2015 (yes, I'm planning early). I will be traveling with my mother and we want separate beds. So far, I've found four places that appear to have at least one twin room available:
The Willows Guest House
Ellie's Guest House
High Tor Guest House
Since I had to look at about 15 B&Bs to find those four, I thought maybe it might be better to post my request here in the hope that locals or frequent visitors to Whitby can point me in the right direction.