May I have recommendations for hostels or camp grounds in the Cotswolds?
For lots of hostel reviews (plus photos/descriptions/prices, etc.), check the Hostelling International, Hostelz, HostelWorld and BUG websites.
We stayed at the hostel in Stow on the Wold, I don't remember the name, but there is only one. Just google it and I'm sure it will pop up. I think it was about £18/night, and was decent.
You'll find lots of links to B&Bs all over the Cotswolds.