The feature is supported by US Federal and State rulesets. This is not supported for Canada rulesets because clocks are optimistic (pause proactively) by default.
To proactively pause shift clocks during split sleeper berth conditions, you can enable the Split Sleeper Toggle in the Samsara Driver App.
To enable the Split Sleeper Toggle, perform the following workflow:
Log in to the Samsara Driver App.
Tap HOS > HOS settings and enable Split Sleeper Toggle.
An option displays under the HOS dials after you have completed one eligible split sleeper period in your shift:
The Split Sleeper Berth toggle is only available for US-based drivers. If you are a driver operating in Canada, you will not be able to enable the Split Sleeper Toggle. As a result, the toggle doesn't appear underneath the HOS dials of the Samsara Driver App. However, the clock will be paused as Canada HOS has an Optimistic Clock performance that pauses proactively. That means that after you complete a qualifying segment (minimum 2 hours), the Samsara Driver App applies the Canada ruleset which considers that you are performing a split sleeper berth and the pauses the clock.
When you enable the option, the shift pauses after the first eligible period until your status changes to On Duty. Samsara displays a note in the HOS log; however, Samsara recommends that you manually add a remark to the log to help during a roadside inspection to clarify the split sleeper scenario.
In the Samsara dashboard, your fleet administrator can see your split sleeper toggle in your driver log: