I'd hoped our bedroom would be quite cool, NE corner of the house so first to lose the direct sunlight in the day, but it was significantly warmer than any room downstairs as soon as we went up to bed.
Your house doesn't have corners?It sounds like you live in a manor house, who are you, Penelope Keith ??
Might live in a lighthouse.................................in Cannock
Windmill?
Bottle kiln?
Martello Tower?