We would like to remind you that the Sleep Center operates on a very precise schedule. We have a long waiting list and a technician has been specifically scheduled for the night to perform your test. We ask that you be as considerate as possible if you find it necessary to cancel your test. Please try to give us at least a 48 hour notice if you find that you must change your appointment. The Sleep Center reserves the right to charge a late cancellation fee. If you contract a significant head cold with nasal congestion please notify us immediately; we may choose to reschedule your testing. Should you have any questions, PLEASE CALL US at 1-888-288-0854.