Split Sleeper Berth Calculator (7/3, 8/2 and More)
Tell us about your first break and we'll show what the second one must be and how many hours you'll have afterwards.
Not covered: passenger-carrying, short-haul exceptions, personal conveyance, team-driver passenger-seat time, Canadian and intrastate rules.
Split Sleeper Plan
FMCSA 49 CFR 395.1(g)(1)(ii) split-sleeper guidance
Take at least 7:00 in the sleeper berth
Because your first break did not have 7+ hours in the sleeper berth, this period must be in the sleeper berth.
Planning aid for US property-carrying drivers under FMCSA rules. Your ELD record and the regulations are what count. Not legal advice.
Quick answer
A valid split has two rest periods: one of at least 7 consecutive hours in the sleeper berth and one of at least 2 consecutive hours (off duty or sleeper), adding up to at least 10 hours. 7/3, 8/2 and 7.5/2.5 all work; 9/1 doesn't (one period is under 2 hours) and 6/4 doesn't (no 7-hour sleeper period).
Common sleeper-berth pairings
| Pairing | Valid? | Why |
|---|---|---|
| 7/3 | Yes | At least 7 h in sleeper, at least 2 h off/sleeper, total 10 h |
| 8/2 | Yes | At least 7 h in sleeper, at least 2 h off/sleeper, total 10 h |
| 7.5/2.5 | Yes | At least 7 h in sleeper, at least 2 h off/sleeper, total 10 h |
| 9/1 | No | One period is under 2 hours (120 minutes minimum) |
| 6/4 | No | No qualifying 7-hour sleeper-berth period |
| 5/5 | No | No qualifying 7-hour sleeper-berth period |
Frequently Asked Questions (FAQ)
Can the 2-hour part come first?
Yes. Either period can come first (395.1(g)(1)(ii)).
Does the 7 hours have to be in the sleeper berth?
Yes, at least 7 consecutive hours in the sleeper berth. The other period can be off duty, sleeper berth or both.
Sources
- 49 CFR 395.3 — Maximum driving time for property-carrying vehicles (Cornell LII)
10/11/14 hours, 30-minute break, 60/70, 34-hour restart
- 49 CFR 395.1 — Scope of rules; (b) adverse conditions; (e) short-haul; (g) sleeper berths (Cornell LII)
Split-sleeper conditions, adverse +2 h, short-haul scope note
- FMCSA — Summary of Hours of Service Regulations (updated 28 Mar 2022)
Official summary of hours of service regulations
- FMCSA — HOS Examples (PDF, 28 Apr 2022)
Example 14 test vector; Examples 6–8 (restart), 29 (70-hour)
- eCFR — 49 CFR Part 395 (official current text)
Official electronic Code of Federal Regulations text
Last reviewed: 2026-10-26
Built and maintained by Numberwright. The rules engine follows 49 CFR Part 395 and reproduces FMCSA's published Example 14. Found a mistake? Contact details coming soon.
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