We recently enjoyed a stay in "La Petite Tour" at the Domaine du Chateau d'Hommes. This chambres d'hote, on the grounds of a former 15th century chateau, was a delightful place to stay in the Loire Valley. It is a brief drive to the Chateaux of Langeais and Villandry and well-located for walks or cycling trips.
With your reservation (for a modest additional fee), your hosts will provide dinner with wine (n'est-ce pas!), thus obviating the need to drive after dinner. At these meals you'll have the opportunity to meet and get to know other guests.
Tranquil surroundings (including an on-site swimming pool), charming hosts, and a little history -- what could be better!