Quantum of the Seas 3U Inside Cabins
Cabin category 3U is a standard-size inside cabin on Quantum of the Seas: 100 3U cabins on decks 7, 9, 10 and 12, from 166 to 256 sq ft.
Quantum of the Seas 3U inside floor plan
- Sleeps
- Up to 4 guests92 cabins sleep 2 · 8 sleep 4
- Beds
- One Royal King bed (can convert into two twin-size beds) · One single sofa bed in staterooms with up to 3 guests · One double sofa bed in staterooms with up to 4 guests
- Bathroom
- One bathroom
- Living space
- Room with bed, vanity and sitting area with sofa
How Quantum of the Seas 3U cabins compare
Quantum of the Seas 3U inside cabins are standard size: the same 166 sq ft as 4 other inside categories; 5% of its cabins connect to a neighbor.
3U: 166 sq ft · tied #1 with 4 others of 6 inside categories
Find Quantum of the Seas 3U cabins on the deck plan
Deck 7 · 30 3U cabins
Swipe to pan · tap a cabinHover a cabin · click to pinClosest alternatives to Quantum of the Seas 3U
Only what's different from 3U is shown.
Same size, on higher decks
The next type up: an ocean view cabin
Same size, on higher decks
Where 3U inside cabins sit on Quantum of the Seas
Most 3U cabins are aft: 54% of those with a recorded position. 3U cabins are on decks 7, 9, 10 and 12.
What's inside a Quantum of the Seas 3U inside cabin
On Quantum of the Seas, Interior with Virtual Balcony staterooms (category 3U) measure 166 sq ft and sleep up to 4 guests. Beds: one Royal King bed that converts into two twin beds, one single sofa bed (in rooms for 3) and one double sofa bed (in rooms for 4). View: virtual ocean view (HD screen). Quantum of the Seas has 98 3U cabins, on decks 7, 9, 10 and 12.
One bathroom. Room with bed, vanity and sitting area with sofa.
Included
- Dedicated stateroom attendant
- Daily cleaning service
- Exclusive bedding collection
- Stateroom climate control
- Ample closet and storage
- In-room HD-TV
- In-room safe for valuables
- Hair dryer
- Deluxe toiletries: shampoo, conditioner & body wash
Quantum of the Seas 3U cabin photos
All 100 cabins in category 3U
Deck 7
30 cabinsDeck 9
30 cabinsDeck 10
23 cabinsAccessible 3U cabins
Known issues in cabin category 3U
No issues recorded for 3U cabins.
Inside prices on Quantum of the Seas
Prices are by cabin type. We don't price individual categories like 3U; "See inside fares" opens current inside fares with our booking partner.
Inside is $12 less per night than an ocean view cabin.
Fares as of Oct 12, 2026. Prices change daily.
67% of upcoming Inside sailings are currently below their recent average fare.
Quantum of the Seas 3U cabin FAQ
How big is a Quantum of the Seas 3U inside cabin?
Most Quantum of the Seas 3U cabins are 166 sq ft; sizes run from 166 to 256 sq ft. That is the most common inside size on Quantum of the Seas.
How many Quantum of the Seas 3U cabins are there, and on which decks?
Quantum of the Seas has 100 3U cabins: 30 on deck 7, 30 on deck 9, 23 on deck 10 and 17 on deck 12.
How many people can stay in a Quantum of the Seas 3U cabin?
Quantum of the Seas 3U cabins sleep up to four. 92 cabins sleep 2 and 8 sleep 4.
What's the difference between cabin category 3U and 2U on Quantum of the Seas?
Quantum of the Seas 3U and 2U cabins are the same size (166 sq ft in total). 2U cabins are on decks 3, 7, 8, 9, 10, 11, 12 and 13; 3U cabins are lower, on decks 7, 9, 10 and 12.
Do Quantum of the Seas 3U cabins connect?
Yes: 5 of the 100 Quantum of the Seas 3U cabins (5%) connect to a neighboring cabin.