If you don't wish to camp, the B&Bs listed below are nearby. (Note: It is advisable to book early as the Wail is usually on the same weekend as the Dorset Steam Fair, so accommodation within the area is at a premium).
Distances are in from the Wail festival site.
White Owls (0.6 km)
Squirrel's Oak (1.6 km)
Maybank (2 km)