Super King: The Ultimate Bed for Big Dreamers
Looking for a bed with maximum room to stretch — without stepping into custom territory? The Super King bed is the largest standard size available in many regions, especially in the UK and Europe. It’s wide enough for two people to sleep in complete comfort—with space to spare for kids or pets.
This UK (and EU)-focused guide guide covers everything you need to know before upgrading to sleep like royalty.
While Super King is a common and standardized size in the UK, the term is rare and inconsistently used in the US (click to read our article about this). So this guide focuses on the UK/EU market.
📏 Super King Bed Dimensions
Mattress Size:
72″ wide × 78″ long (183 cm × 198 cm)
📐 That’s 12″ wider than a standard King and 6″ longer than a Queen — offering unmatched sleep space for couples.
👤 Who is Super King Best For?
- Couples who want maximum personal space
- Families who co-sleep with kids or pets
- Luxury master bedrooms
- People who toss and turn or sleep hot
- Anyone upgrading from a King or Queen who wants more room
✅ Pros
🛏️ Incredible Width:
Sleep without bumping into your partner.
🐶 Perfect for Co-Sleeping:
Space for pets or kids without cramping.
🧍♂️🧍♀️ Luxury-Level Comfort:
Feels spacious and indulgent every night.
🧭 Symmetrical Layout:
Easy to style in a large, balanced bedroom.
❌ Cons
🚪 Large Footprint:
Not suitable for smaller rooms.
💸 Higher Price Point:
Mattresses, bed frames, and bedding cost more.
📦 Difficult to Move:
May be hard to fit through tight hallways or staircases.
🛍️ Limited U.S. Availability:
Not as common outside the UK and Europe. Read our article about Difference between Super King in UK and US.
🏠 Recommended Bedroom Size
Minimum Room Size required:
12 ft × 12 ft (3.65 m × 3.65 m)
This allows space for furniture, walkways, and breathing room.
🌍 Where Super King is Used
🇬🇧UK & Ireland:
Super King is the largest standard size, widely available.
🇪🇺Europe: Also used under similar names like “Grand King” or “180 cm bed”.
🇦🇺Australia & NZ: Common in luxury homes and hotel-grade settings.
🇺🇸United States: Rarely used; people opt for California King or custom sizes instead.
Alternative Names Around The World
UK: Super King
EU: 180 cm bed / King XL
Custom market (U.S.): May be called “Super King” when larger than a California King
Also known as: Grand King, European King
🕰️ History & Fun Facts
🏨 Hotel Roots:
Popularized by luxury hotels for premium guest experiences.
📐 Twin XL Trick:
Two Twin XL mattresses = one Super King (183 × 198 cm).
🛌 Bed in Sections:
Super King bases often come in halves for easier moving.
📈 Growing in Homes:
As primary bedrooms get larger, the demand increases.
🛒 Super King Bed Shopping Guide
🧩 What to Look For
- Correct Dimensions: 183 cm × 198 cm (or 72″ × 78″)
- Split-Base Frames: For easier transport and setup.
- Firmness Level: Choose based on personal sleep preferences; motion isolation is key for couples.
- Deep Sheets: Look for “Super King” labeled sheets—especially for taller mattresses.
- Adjustable Bases: Often available in two halves for flexibility.
🛍️ Where to Shop
- UK & EU Retailers: Dreams, John Lewis, IKEA, Bensons for Beds
- Australia/NZ: Snooze, Forty Winks, Koala
- U.S. (custom): Saatva, Tempur-Pedic, Custom Mattress Makers
- Online: Wayfair, Amazon (be sure to verify measurements), luxury bedding brands
🧠 Pro Tips for Buying a Super King Bed
🧰 Measure Doorways Before Delivery:
Avoid tight squeezes with split bases or modular frames.
🛏️ Use Mattress Protectors:
Preserve your investment—especially in shared beds.
🧵 Order Sheets Early:
Super King sheets are less common than Queen or standard King.
🌬️ Choose Cooling Materials:
Larger mattresses retain more heat; cooling foams or breathable toppers help.
💡 Plan the Room Layout:
Nightstands and clearance space are essential in large-bed setups.
✅ Conclusion
The Super King bed is the ultimate in everyday sleep luxury—offering expansive space, unbeatable comfort, and premium style. While it’s not ideal for smaller rooms or tight budgets, it’s a dream come true for couples, co-sleepers, and anyone who takes sleep seriously. If you’ve got the space, this bed size brings the comfort of a 5-star hotel suite right into your bedroom.
But be aware when buying – a Super King is not the same in US and UK/Europe!