JUNE 25, 2007, WE WERE IN MONTANA AND HAD JUST COME DOWN FROM APPROX. 14,000 FT. PASS, CLOSED SUN ROOF ON OUR 2008 FORD F350 CREWCAB DIESEL, ALL 4 OCCUPANTS (3 ADULTS & 1 CHILD) FELL ASLEEP @ 2:00 PM IN THE AFTERNOON. PASSENGER WOKE AS WE WERE GOING OFF THE PAVEMENT, TRIED TO PUT TRUCK BACK ON PAVEMENT BUT FRONT OF TRUCK WOULD NOT GET UNDER CONTROL, HIT MAIL BOXES AND VEERED TO LEFT (STILL UNABLE TO CONTROL) NOT SPEEDING, HIT HEAD ON INTO TREES, ROLLED TO ROOF. AIR BAGS DID NOT DEPLOY ON EITHER SIDE, DRIVER SIDE (FRONT AND BACK) ROOF CRUSHED TO TOP AND INTO FRONT DRIVERS SEAT AND ALMOST TO FRAME OF WINDOW IN THE BACK SEAT. WHY OR WHAT CAUSED US ALL TO FALL ASLEEP AFTER CLOSING SUN ROOF, WHY WERE WE NOT ABLE TO CONTROL FRONT OF TRUCK (TOO HEAVY?), WHY DID AIR BAGS NOT DEPLOY AND WHY DID ROOF CRUSH SO FAR ON A ROLL TO ROOF, WE DID NOT ROLL COMPLETELY OVER. TRUCK WAS TOTALED. NO DEATHS OCCURRED, DRIVER RESULTED IN A BROKEN NECK AND PASSENGERS WITH RIB AND NECK INJURIES. *TR