Colin Snow
The sleeper-berth exception is a confusing rule in the FMCSA regulations. The rule applies to drivers of property-carrying CMVs equipped with a compliant sleeper berth. The split sleeper berth rule allows a truck driver to extend a shift by splitting the required 10 consecutive hours of off-duty time into two shifts. This means that drivers can adjust their schedules for longer hauls or warehouse hours by taking a rest break to comply with driving hour limitations. To use the split-sleeper exception, drivers need to take at least a 7-hour break in the sleeper berth and a minimum 2-hour break that is off-duty, in the sleeper berth, or a combination of the two, for a total of at least 10 total hours in two qualifying breaks.
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What You'll Learn
The split-sleeper berth exception
To use the split-sleeper exception, drivers need to take a minimum of 7 consecutive hours in the sleeper berth and a minimum 2-hour break that is off-duty, in the sleeper berth, or a combination of the two, for a total of at least 10 total hours in two qualifying breaks. The two qualifying breaks can be taken in either order.
For example, a driver could take a 7-hour sleeper period, followed by a 3-hour off-duty period, or vice versa. This flexibility allows drivers to decide how to split their breaks—whether it's 8 and 2, or 7 and 3.
One of the key benefits of the split-sleeper berth exception is the ability to stop the clock on the 14-hour rule for at least two hours. This means that drivers can pause the 14-hour clock by taking two separate qualifying break periods that combine to obtain at least 10 hours off duty. This added flexibility can be advantageous for drivers who need to adjust their schedules to accommodate longer hauls or time spent at loading docks.
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The 7/3 split
The two qualifying breaks can be taken in any order, as long as they add up to at least 10 hours. This rule gives drivers the ability to stop the clock" on their 14-hour workday, which can be especially beneficial for avoiding rush-hour traffic situations. However, it can be a bit confusing for drivers to calculate their remaining drive time after taking the split breaks.
While the 7/3 split offers more flexibility, it may also lead to drivers being behind the wheel at times when they would typically be sleeping, which could be dangerous. As of late 2024, the 7/3 split did not appear to be widely adopted in the trucking industry, with only about 48% of drivers on US highways having a sleeper berth in their truck.
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The 8/2 split
Here's how the 8/2 split works:
- 8-hour sleeper berth: Drivers must take at least 8 consecutive hours in the sleeper berth. This long break effectively pauses the 14-hour driving window and does not count towards shift limits.
- 2-hour break: Drivers can then take a second break of at least 2 hours. This shorter break can be spent off-duty, in the sleeper berth, or a combination of both. It is important to note that this break does count towards the 14-hour on-duty clock.
The order of these breaks does not matter, and once both breaks are completed, the 14-hour driving window restarts from the end of the first sleeper berth shift. It is worth mentioning that the 8/2 split does not provide a full 10-hour reset; it simply moves the start time of the driving window. Additionally, drivers must still abide by other FMCSA regulations, such as the 60/70-hour workweek rule and the 34-hour restart rule.
While the 8/2 split can be useful in certain situations, it is not recommended to use it daily. Getting only 7 to 8 hours of rest each day may not be sufficient, and it can be challenging to keep track of the hours. It is generally advised to use the split sleeper berth rule sparingly and only when necessary to maximise efficiency and safety on the road.
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The 14-hour rule
To provide some flexibility, the sleeper berth provision allows drivers to split their 10-hour off-duty time into chunks. This means that they don't have to take all 10 hours off consecutively. One of the chunks must be at least two hours long, and the other must be at least seven consecutive hours spent in the sleeper berth. These breaks do not count against the driver's 14-hour on-duty clock.
For example, a driver who starts their day with two hours of non-driving on-duty time and then drives for six hours will have six hours remaining on their 14-hour clock and five hours of drive time. If they then take an eight-hour break in the sleeper berth, the 14-hour clock is paused. After the break, they still have six hours remaining on the 14-hour clock and five hours of drive time. Once they drive the remaining five hours, they will need to take a two-hour break, and the 14-hour window restarts.
The sleeper berth rule gives drivers multiple options for splitting their off-duty time, such as 8/2, 7/3, or 7.5/2.5, as long as the two chunks add up to at least 10 hours. This flexibility can help drivers manage their schedules more efficiently, especially when dealing with longer hauls or warehouse hours.
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The sleeper-berth provision
The rule allows a driver to extend an on-duty shift by splitting the required 10 consecutive hours of off-duty time into two shifts. This means that drivers can adjust their schedules for longer hauls or warehouse hours by "dropping in" a rest break that pushes out a 14-hour driving period. This flexibility can be especially useful when docking station wait times cut into driving time or when operating hours of a destination do not align with the time it takes to complete a route.
To comply with the sleeper-berth provision, drivers must take at least seven consecutive hours in the sleeper berth as one of the two shifts. The other shift can be spent off-duty, in the sleeper berth, or a combination of the two, as long as it is at least two consecutive hours. The two breaks can be taken in any order, and the 14-hour driving window is restarted from the end of the first sleeper berth shift after the second shift is completed.
It is important to note that the split sleeper berth is not a full 10-hour reset of the 14-hour driving window. Instead, it shifts the start time of the window. Additionally, drivers are required to use an electronic logging device (ELD) to track and record their time to ensure compliance with driving time regulations.
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Frequently asked questions
The split sleeper berth rule allows a truck driver to extend their shift by splitting the required 10 consecutive hours of off-duty time into two shifts. This means that drivers can adjust their schedules for longer hauls or warehouse hours by taking a rest break to comply with driving hour limitations.
Drivers can split sleeper berth time into two periods as long as neither period is less than two hours. One shift must be 2-8 hours and can be spent in the sleeper berth, off-duty, personal conveyance, or a combination of the three. The second shift must be 8-10 hours and must be taken in the sleeper berth.
Off-duty and sleeper berth rest periods that qualify can be used to determine compliance with the 14-hour "driving window" rule.
