Just for general interest, and to compare and contrast; Here are the EU rules for truck drivers, (from GOV.UK):-
Breaks and rest
The main points of EU rules on breaks and rest are that you must take:
at least 11 hours rest every day - you can reduce this to 9 hours rest 3 times in a week
an unbroken break of 45 hours every week - you can reduce this to 24 hours every other week
your weekly rest after 6 days of working - coach drivers on an international trip can take their weekly rest after 12 days
a break or breaks totalling at least 45 minutes after no more than 4.5 hours driving
My emphasis on the last point. And the turnaround is
not suitable as the 45 mins rest.
In addition, the Health and Safety Executive specifies that a break of 15/20 mins should be taken after every 2 hours of driving.