Sleeper Berth Guide

Who This Applies To

• Property-carrying CMV drivers who want to use the sleeper berth provision to split the required 10-hour off-duty period into two parts.
• Team drivers who use sleeper berths to alternate driving and rest and need to understand how the split provision affects each driver's available hours.
• Dispatchers planning long-haul schedules around the sleeper berth split provision.
• Drivers who received a roadside inspection citation related to sleeper berth split compliance and need to understand the rule.

What To Verify

• The current sleeper berth split conditions under 49 CFR Part 395. FMCSA has modified the split provision over time — verify the current requirements against the active version of eCFR Part 395 before relying on a specific split structure.
• That under the current rule, a qualifying sleeper berth split consists of two periods that together total at least 10 hours: one period of at least 7 consecutive hours in the sleeper berth, and one period of at least 2 consecutive hours either in the sleeper berth or off duty.
• How the split affects the 14-hour window calculation. The sleeper berth provision modifies the 14-hour window — the off-duty period in the sleeper berth is excluded from the 14-hour clock calculation under specific conditions. The current eCFR text is the authoritative source.
• That neither split period alone satisfies the full 10-hour off-duty requirement — both periods must be taken for the split to be valid.

Step-by-Step Overview

1. Plan the split in advance. Confirm the planned split periods meet the minimum time thresholds: at least 7 consecutive hours in the sleeper berth for the longer portion, and at least 2 consecutive hours for the shorter.
2. Record each split period accurately in the ELD. The ELD must show the correct duty status (sleeper berth) for the duration of each sleeper period.
3. Calculate available driving and on-duty time after each split period using the current rule's calculation method. The 14-hour window calculation changes when the split provision is used.
4. For team drivers, track each driver's split periods and available hours independently. One driver's sleeper berth time does not extend the other's available driving time.
5. If any uncertainty exists about how to calculate available time after a split, use the conservative interpretation or consult FMCSA guidance directly.

Common Mistakes

• Using a sleeper berth split calculation method that applied under a prior version of the rule. FMCSA modified the sleeper berth provision — verify the current eCFR Part 395 text before applying any calculation method.
• Taking two split periods of less than 7 hours each and expecting them to qualify. The longer split period must be at least 7 consecutive hours — a 6-hour and 4-hour split does not satisfy the rule.
• Interrupting a sleeper berth period with a brief on-duty activity and then resuming. An interruption typically restarts the consecutive-hour count — the time must be uninterrupted.
• Assuming both drivers in a team truck can use the other's rest period to extend their own driving window. Each driver must independently meet the HOS requirements — the other driver's sleep time does not count.