How many on duty hours are remaining after the following has been logged (use a scratch sheet of paper if you need to):
- On duty/not driving: 3 hours
- Driving: 4 hours
- Sleeper berth: 8 hours
- Driving: 7 hours
- Off duty: 2 hours

Example of the split sleeper berth rule:
After taking 10 consecutive hours off duty, You start to work at 7:00 a.m. At 10:00 a.m., you begin driving and at 2:00 p.m. you spend 8 hours in your sleeper berth before resuming driving again at 10:00 p.m. At 10:00 p.m. Those 8 hours in the sleeper berth do not count as part of the 14 hour limit.
This means that you only used 7 of your 14 hours so far, and your 14 hour limit gets extended from 9:00 p.m. that evening to 5:00 a.m. the next morning. Your driving limit is still 11 hours and so far you have only driven 4 hours. That means you have 7 hours of driving time still available, allowing you to drive from 10:00 p.m. until 5:00 a.m.
At 5:00 a.m. you take your second rest period, going off duty for 2 hours. That brings you to 7:00 a.m.
Since you met the regulation of getting the equivalent of 10 hours off duty in two periods, you now have a new calculation point for figuring your 11 and 14 hours. Your new calculation point is at the end of the first rest period, which was at 10:00 p.m. Your new 14 hour period begins at 10:00 p.m. and ends 14 hours later, at noon the following day. During that new 14 hour period you are allowed 11 hours of driving.
From 10:00 p.m. to 7:00 a.m. you used-up 9 of the 14 duty-period hours and 7 of the 11 hours of driving time. Therefore you now have 5 hours of duty time available during which you are allowed to drive 4 hours.
Because your 14 hour duty period ends at 12:00 noon that day, before you can drive a CMV again after 12:00 noon, you must have another rest period in the sleeper berth of at least 8 consecutive hours (if you are using the sleeper-berth exception). After that you must again recalculate how many hours you will have available. Your new calculation point will be the end of the 2-hour off duty period you took earlier (7:00 a.m.).