
The split sleeper berth rule is a provision that allows truck drivers to split their required 10 consecutive hours of off-duty time into two separate break periods. This rule is beneficial for truck drivers and fleets as it offers flexibility in hours-of-service compliance and can be used to adjust schedules for longer hauls or warehouse hours. The rule is complicated and often confusing, but it is important to understand as it can be incredibly useful for drivers who need more flexibility in their schedules.
| Characteristics | Values |
|---|---|
| Main benefit | Pauses your 14-hour clock |
| Minimum sleeper-berth period | 7 consecutive hours |
| Shorter segment | At least 2 hours long, with no on-duty or driving time |
| Longer segment | At least 7 hours of continuous sleeper berth time, with no on-duty or driving time |
| Total time | At least 10 hours |
| Driving limit | 11 hours out of 14 hours |
| Driving window | 14-hour driving window |
| Driving window after break | Resets to 6 hours |
| On-duty window | Extends on-duty shift |
| On-duty time | 1 hour |
| Driving time | 5 hours |
| Break time | 8 hours |
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What You'll Learn

Split sleeper berth rule
The split sleeper berth rule is a provision that allows drivers to extend their on-duty shift by splitting the required 10 consecutive hours of off-duty time into two shifts. This rule is beneficial for truck drivers and truck fleets as it offers flexibility in hours-of-service compliance, allowing them to adjust schedules for longer hauls or warehouse hours.
To understand the split sleeper berth rule, it's important to know about the sleeper berth provision. This provision mandates that drivers must take at least 10 consecutive hours off-duty, which can be spent in the sleeper berth. The split sleeper berth rule allows drivers to split this 10-hour rest period into two separate break periods, with one shift between two and eight hours, and the other between eight and ten hours. The shorter segment must be at least two hours long with no on-duty or driving time, while the longer segment must include at least seven hours of continuous sleeper berth time. Both periods will pause the 14-hour clock, and the two segments combined must add up to at least 10 hours total.
For example, a driver who starts their day at 6 am with one hour of on-duty, non-driving work, signals the start of the 14-hour working window. If they drive for five hours until 12 pm, they will have used five hours of the 11-hour drive time and six hours of the 14-hour clock. At this point, the driver can take an 8-hour break in the sleeper berth, effectively pausing the 14-hour clock. When the driver gets back on the road at 8 pm, they will have six hours of drive time remaining and eight hours on the 14-hour clock.
It is important to note that the split sleeper berth rule does not provide a full 10-hour reset of the 14-hour driving window. Instead, it simply moves the start time of the window. Additionally, the rule only applies to drivers operating vehicles with a sleeper berth, and the calculation of the shift window can be the most complicated part of understanding this rule.
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Qualifying break periods
The split-sleeper berth rule allows a driver to extend an on-duty shift by splitting the required 10 consecutive hours of off-duty time into two qualifying break periods. The two qualifying break periods can be taken in any order. The shorter segment must be at least 2 hours long, with no on-duty or driving time. This break must be at least 2 consecutive hours of off-duty time, sleeper-berth time, or both. The longer segment must contain at least 7 hours of continuous sleeper berth time, with no on-duty or driving time. The two segments combined must add up to at least 10 hours total.
The split-sleeper berth provision moves the shift window forward. The shorter break can be in off-duty or sleeper berth duty status. The longer break must always be in the sleeper. The split-sleeper berth rule is a way to split up an entire 10-hour rest period into two separate break periods. The 10-hour break can be split into 8/2 and 7/3.
The FMCSA is considering whether to include 6/4 and 5/5 as support sleeper berth options, but this is not currently implemented. The sleeper-berth exception is one of the most confusing rules in the FMCSA regulations. The provision is important to understand because it can be very useful for truck drivers who need more flexibility in their schedules.
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Shift windows
The split sleeper berth rule allows a driver to extend their on-duty shift by splitting the required 10 consecutive hours of off-duty time into two shifts. This allows drivers to adjust their schedules to accommodate longer hauls or warehouse hours by inserting a rest break that extends a 14-hour driving period. The rule is a source of confusion, but it is important to understand as it can be very useful for truck drivers who need more flexibility in their schedules.
The split sleeper berth rule can be used to move a driver's shift window forward. The rule applies to drivers operating vehicles with a sleeper berth, and it involves splitting an entire 10-hour rest period into two separate break periods. The two breaks can be taken in either order, and the short break can be in an off-duty or sleeper berth duty status. The longer break must be at least seven consecutive hours in the sleeper berth, while the shorter break must be at least two consecutive hours of off-duty time, sleeper berth time, or a combination of the two. The two breaks combined must add up to at least 10 hours in total.
The impact of the split sleeper berth rule on a driver's shift window can be understood through an example. Consider a driver who starts their day at 6 am with one hour of on-duty, non-driving work, marking the beginning of their 14-hour working window. At 7 am, the driver starts driving and drives for five hours until 12 pm, using five hours of their 11-hour drive time and six hours of their 14-hour clock. The driver then takes an 8-hour break in the sleeper berth, effectively pausing their 14-hour clock. When the driver resumes driving at 8 pm, they have six hours of drive time remaining and eight hours on the 14-hour clock.
The split sleeper berth rule allows drivers to continually move their shift window forward by taking multiple split sleeper periods. For example, a driver can take a 3-hour break followed by a 7-hour sleeper period, and then repeat this pattern to keep extending their shift window. This flexibility can be beneficial for truck drivers and fleets by providing more flexibility in hours-of-service compliance. However, it is important to note that the split sleeper berth rule does not reset the 14-hour driving window; it simply moves the start time of the window.
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Driving time
The split sleeper berth rule is an exception to the HOS regulations that allows drivers to divide their off-duty time into segments, offering greater flexibility while staying compliant. The FMCSA defines the split sleeper berth provision as: "Drivers may split their required 10-hour off-duty period, as long as one off-duty period (whether in or out of the sleeper berth) is at least 2 hours long and the other involves at least 7 consecutive hours spent in the sleeper berth." The two breaks can be taken in either order.
The split sleeper berth rule gives commercial truck drivers more flexibility over their schedules, which is especially helpful when waiting times at shippers or receivers cause unexpected delays. For example, if a driver arrives at a shipper's warehouse outside of their operating hours, those hours waiting for the shipper to open will count against their 14-hour on-duty clock. By taking a split break, the driver can avoid this issue and make the most of their driving hours.
It's important to note that the split sleeper berth rule does not provide a full 10-hour reset of the 14-hour driving window. Instead, it shifts the start time of the window. To avoid violating HOS regulations, drivers should use an electronic logging device (ELD) to track and record how they spend their time.
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On-duty time
The split sleeper berth rule allows truck drivers to extend their on-duty time by splitting their mandatory 10-hour break into two shifts. This means that drivers can adjust their schedules to accommodate longer hauls or warehouse hours by "dropping in" a rest break to comply with driving hour limitations.
Truck drivers are required to take a 30-minute break from driving after eight hours of driving. This break can be taken in the sleeper berth, on off-duty status, or on-duty status, but it should not include any drive time. After this, they must take a 10-hour off-duty break, during which they are not allowed to be on duty or do any driving-related tasks. With the split sleeper rule, drivers can split their 10-hour break into two shifts: one between seven and 10 hours, which must be spent in the sleeper berth, and the other between two and 10 hours, which can be split between the sleeper berth and off-duty status or a combination of the two. These breaks can be taken in either order.
The sleeper berth option allows drivers to split their 10-hour required rest period into two separate segments, typically known as the long segment and the short segment. The two segments must cumulatively equal a minimum of 10 hours prior to the start of an Hours of Service (HOS) day. The long segment must be no less than seven consecutive hours, and the short segment must be no less than two consecutive hours.
The split sleeper berth provision allows drivers to divide their required rest period into two separate intervals. One interval must be at least seven consecutive hours in the sleeper berth, and the second interval must be at least three consecutive hours either in the sleeper berth, off duty, or a combination of both. For example, a driver could choose to spend seven hours in the sleeper berth, followed by three hours off duty, or they could split their rest into multiple shorter intervals as long as the total rest time meets the required duration of 10 hours.
Upon completing the second segment, a driver's HOS time is recalculated back to the end of the first split sleeper segment. This can be helpful if the driver is running out of daily HOS driving window or cycle hours.
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Frequently asked questions
The split sleeper berth 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 allows drivers to adjust schedules for things like longer hauls or warehouse hours by “dropping-in” a rest break that pushes out a 14-hour driving period.
Calculating your shift window is the most complicated part of the split-sleeper berth rule. When you combine two break periods (8/2, or 3/7), the shift window moves forward to the end of the first period.
The key aspect of how Split-Sleeper helps your hours is that the split-sleeper berth provision moves your Shift Window forward. One useful example of split-sleeper is to make use of split-sleeper periods as drop-off or pick-up times, so that you can have more time on the road.
The split sleeper berth rule can benefit both truck drivers and truck fleets by offering flexibility in hours-of-service compliance. It can be incredibly useful for truck drivers who need more flexibility in their schedules.






































