One more thought, Graybeard. If you are sleep deprived, please do not drive. Your daughter has enough grief to bear in the coming months.
Please consider taking a bus, train or short flight instead of driving.
Ditto on the no driving if you haven't had sleep. My uncle almost died in the 60's when the VW he was driving went off the road after he fell asleep.
Prayers for you and yours. It is so hard to lose a loved one, but especially one so young.