Split Sleeper Berth Rule with Real Examples (2026)

The split sleeper berth lets you break your 10 hours off into two pieces — and used right, it buys back driving time. Here's how it works, in plain English.

The basic rule

Property-carrying drivers normally need 10 consecutive hours off duty to reset the 11-hour and 14-hour clocks (see our HOS rules explained guide). The split sleeper berth is an exception: you can divide those 10 hours into two qualifying rest periods instead of taking them all at once.

To qualify, both of these must be true:

One period is at least 7 consecutive hours in the sleeper berth.
The other period is at least 2 consecutive hours, spent off duty or in the sleeper berth.
The two periods add up to at least 10 hours total.

Which splits qualify

Split	Qualifies?	Why
8 / 2	Yes	8 hrs sleeper (≥7) + 2 hrs (≥2) = 10
7 / 3	Yes	7 hrs sleeper (≥7) + 3 hrs (≥2) = 10
7.5 / 2.5	Yes	Both minimums met, totals 10
6 / 4	No	Neither period reaches 7 hrs in the sleeper
9 / 1	No	The short period is under 2 hours

Why it helps: it pauses your 14-hour clock

The payoff is this: neither qualifying period counts against your 14-hour window. Normally the 14-hour clock runs straight through and never stops for breaks. But when you take a qualifying sleeper period, that time is set aside — so your driving window effectively stretches to cover it.

A worked example (8/2)

Say you go on duty at 6:00 a.m. after a full 10 hours off:

6:00–11:00 a.m. — drive 5 hours. You've used 5 of your 11 driving hours.
11:00 a.m.–7:00 p.m. — 8 hours in the sleeper berth. This is your "8," and it qualifies.
Because that 8-hour period doesn't count against the 14, your window has only advanced by the 5 hours you actually drove — not by the 8 hours you slept.
7:00 p.m. onward — you're back to driving with hours still on the clock, then later take a separate 2 hours off to complete the pair.

Once you finish the second period, your clocks are recalculated from the end of the first rest period. The details get fiddly fast, which is exactly why you shouldn't be doing this math in your head at a truck stop.

Let your ELD do the math

TruckSpot ELD tracks both halves of a split automatically, recalculates your available drive and window time the moment each qualifying period ends, and warns you before you run out — so a split that looks legal on paper doesn't turn into a violation at the scale.

Track your HOS automatically — start for $1 →

Frequently asked questions

What splits qualify for the sleeper berth rule?

You pair two rest periods that total at least 10 hours: one of at least 7 consecutive hours in the sleeper berth, and another of at least 2 consecutive hours off duty or in the sleeper. Common pairs are 8/2, 7/3 and 7.5/2.5.

Does a split sleeper berth stop the 14-hour clock?

Effectively, yes. Neither qualifying rest period counts against your 14-hour driving window, so the time you spend in the qualifying sleeper period does not eat into the 14 hours.

Does a 6/4 or 9/1 split work?

No. One period must be at least 7 hours in the sleeper berth, so a 6/4 fails, and the other must be at least 2 hours, so a 9/1 fails. Both periods must also add up to at least 10 hours.