Can you sleep in your car on a ferry?

By the Viamo editorial team · Editor Terje Moy · Last updated July 2026 · 5 min read

No — on almost every ferry line in Europe, you cannot stay in or return to your car once the vehicle deck is sealed and the ship is underway. This catches out a lot of first-time car-ferry travellers who assume they can simply nap in the driver's seat during a long crossing. The vehicle deck is closed to passengers for the whole voyage for safety reasons, so if you want to sleep, you need to book a seat, a reclining chair or a cabin like everyone else on board.

Why you can't stay in the car

Vehicle decks on ferries are treated as a hazardous area once the ship is at sea: they're unventilated for fumes in the way passenger areas are, exits can be tight between packed vehicles, and in an emergency evacuation, having passengers scattered among vehicles rather than in the accessible passenger areas seriously complicates things. Maritime safety regulations across Europe require the vehicle deck to be closed to passengers during the crossing, with access only for brief supervised visits on genuinely long crossings (typically to check on a pet in a vehicle, and even then usually under specific rules — see below). This isn't an operator-by-operator preference; it's a safety requirement that applies almost universally on car ferries operating in EU and UK waters.

When you can access the vehicle deck

Most short and medium ferry crossings — the Dover–Calais route, the Baltic hops, most Greek island routes — simply don't open the vehicle deck at all during sailing; you park, go upstairs, and return to your car only once the ship has docked and vehicle disembarkation begins. On longer overnight crossings, such as Brittany Ferries' UK–Spain routes, some operators allow scheduled, supervised visits to the car deck at set times, mainly for passengers travelling with pets that must remain in the vehicle. These visits are announced over the tannoy and are brief — not an opportunity to spend the night there.

What to book instead

For day crossings of a few hours, a standard airline-style seat or a spot in a lounge is usually included in your ticket and perfectly comfortable. For overnight or longer crossings, the realistic choices are:

• Reclining "Pullman" seats — the budget option, similar to a long-haul economy seat, fine for a calm short night but not ideal for light sleepers.
• Shared couchette or bunk cabins — a proper flat berth in a shared cabin, a good mid-price option for solo travellers or those happy to share.
• Private cabins — booked as a whole unit, sometimes with an en suite bathroom, the most comfortable and private option, especially worthwhile for couples or families splitting the cost.

See the overnight ferries guide for a full breakdown of these options and which routes suit an overnight crossing, and ferry cabins vs seats for help deciding whether the upgrade to a cabin is worth it for your specific crossing.

Taking a car on the ferry generally

Bringing a vehicle changes how you book — fares are usually calculated by vehicle length and passenger count together, rather than per person — but it doesn't change your options for where you sleep during the crossing. Whatever ticket type you book for yourself as a passenger applies regardless of whether your car is in the hold below. See taking a car on a ferry for booking and boarding logistics with a vehicle.

What about campervans and motorhomes?

The same rule applies to motorhomes and campervans: you cannot stay inside your vehicle, including a fitted-out camper with its own bed, once the vehicle deck is sealed for the crossing. This surprises some campervan travellers who assume their vehicle counts as their cabin. On most routes you'll need to book passenger accommodation separately, exactly as a car traveller would, regardless of how well-equipped your vehicle is for sleeping on land.

Practical tips for a smooth crossing without your car

• Take everything you'll need during the crossing — medication, chargers, snacks, a change of clothes, entertainment — out of the car before it's parked on the deck, since you won't be able to go back for a forgotten item.
• If travelling with a pet that must stay in the vehicle, check the specific operator's pet policy and any scheduled car-deck access times before booking — see pets on ferries in Europe for how this works route by route.
• Arrive at the terminal with enough time to park, lock up and move to the passenger areas before boarding closes — rushing this stage is where forgotten items usually happen.

If seasickness is more of a worry to you than where you sleep, see how to avoid seasickness on a ferry for where to sit and what to take.

Frequently asked questions

Can I at least sit in my car while it's parked before boarding closes?

Usually yes, while the ship is still loading and the deck hasn't been sealed — but once boarding is complete and the crossing begins, everyone must move to the passenger areas, and the deck is generally locked down for the voyage.

Are there any ferry lines that allow passengers to stay with their vehicle?

It is not standard practice on any major European operator. A handful of small, informal, or vehicle-only cargo-style crossings in other parts of the world may work differently, but for the ferries most travellers use in Europe, the vehicle deck closes to passengers for the crossing.

What happens if I need something from my car during the crossing?

On most short crossings, nothing can be done — the deck stays sealed until arrival. On some longer overnight routes, operators run brief supervised access windows, mainly intended for checking on pets. Ask staff on board; do not attempt to access the vehicle deck without permission.

Do motorhomes get any exception to sleep on board?

No. Motorhomes and campervans are treated the same as cars for this rule — passengers must vacate the vehicle deck during the crossing regardless of how the vehicle is fitted out.