According to the email I received from Inndulge and I quote:
FROM: INNdulge-Coachella Fest
Guarantee: Forty-five (45)days prior to arrival date a non-refundable deposit equal to half your stay (room and tax) will be charged to your credit card.
Cancellation Policy: Cancellation must be received at least 45days prior to arrival date. Reservations cancelled less than 45days prior to arrival date will forfeit all deposits made.