Malmaison Oxford are offering a room in their converted prison hotel for £1.00 if you spend £75.00 on dinner for two. Sunday nights until the end of March, but not March 22nd (Mothers Day).
I've stayed here before and it was really great. I've booked again and the room which is a converted cell would normally be £135.00 room only.
Call the hotel on 01865 268400 to book.