Bed By Size
Complete UK Bed Sizes Guide – Find Your Perfect Fit
Choosing the right bed size is crucial for comfort, bedroom functionality, and sleep quality. Our comprehensive guide covers all UK standard bed dimensions, from compact 3ft single beds to luxurious 6ft super king beds. Whether you're furnishing a child's bedroom, maximizing a compact apartment, or creating the ultimate couples' sleep sanctuary, we'll help you find the perfect bed size with detailed specifications and expert recommendations.
Quick Navigation – Jump to Your Size
Complete Bed Dimensions Reference
Bed Size Buying Guide
Single 3ft Beds (90cm) – Compact & Efficient
The 3ft single bed is ideal for children, teenagers, guest bedrooms, and compact living spaces. At 90cm wide and 190cm long, single beds offer excellent value without sacrificing comfort. Perfect for:
- Children's bedrooms (age 8+)
- Student accommodation and halls of residence
- Guest/spare bedrooms
- Compact apartments and studio flats
- Space-saving bedroom designs
Small Double 4ft Beds (120cm) – Compact Couples
The small double bed (4ft or 120cm) offers more sleeping space than a single while maintaining a compact footprint. Ideal for couples in smaller bedrooms, this size provides comfortable sleeping while maximizing room functionality. Perfect for:
- Young couples in apartments
- Master bedrooms with limited square footage
- Solo sleepers preferring more width
- Guest rooms for couples
- Lofts and converted spaces
Explore All 4ft Small Double Beds →
Standard Double 4ft6 Beds (135cm) – UK's Most Popular
The 4ft6 double bed (also called standard double, measuring 135cm) remains Britain's most popular bed size. It's the perfect balance between sleeping space and bedroom practicality, accommodating two adults comfortably while fitting into most master bedrooms. Perfect for:
- Couples seeking standard comfort
- Primary bedrooms (average size)
- Families wanting mid-range sleeping space
- Most UK home designs (standard spec)
- Best value for couples' comfort
Explore All 4ft6 Standard Double Beds →
King Size 5ft Beds (150cm) – Premium Couples' Space
The king size bed (5ft or 150cm) offers exceptional sleeping space with 15cm additional width compared to standard doubles. A true luxury upgrade, king beds provide couples with extra personal space while maintaining elegant bedroom proportions. Perfect for:
- Couples prioritizing personal space
- Premium master bedrooms (14m² +)
- Taller couples needing comfort
- Master suites and luxury properties
- Comfort-conscious homeowners
Explore All 5ft King Size Beds →
Super King 6ft Beds (180cm) – Ultimate Luxury
The super king bed (6ft or 180cm) is the ultimate in sleeping luxury, providing maximum width (45cm more than standard doubles) and superior comfort. Ideal for spacious master bedrooms and luxury properties, super king beds are the largest standard UK bed size. Perfect for:
- Couples seeking maximum personal space
- Luxury master bedrooms (16m² +)
- Tall couples and restless sleepers
- Premium properties and boutique hotels
- Sleep quality enthusiasts
Explore All 6ft Super King Beds →
How to Choose the Right Bed Size
1. Measure Your Bedroom
Start by measuring your bedroom dimensions. For comfortable room layout, allow approximately 1 meter of clearance on each side of the bed. This ensures you can walk around furniture and opens windows/doors without obstruction. Use this quick guide:
Small bedrooms (under 10m²): Single 3ft or Small Double 4ft
Average bedrooms (10-14m²): Standard Double 4ft6 (ideal choice)
Large bedrooms (14-16m²): King Size 5ft
Spacious bedrooms (16m²+): Super King 6ft
2. Consider Who Will Sleep There
Different sleeping arrangements require different sizes. Solo sleepers might prefer double width for comfort, while couples should consider whether they share a bed or need personal space. Restless sleepers and taller individuals benefit from larger sizes.
3. Evaluate Lifestyle Needs
If you work from home, have pets, or enjoy breakfast in bed, larger dimensions improve comfort. Couples with different sleep schedules benefit from extra width. Young families might alternate sleeping partners, making larger beds practical.
4. Plan Future Use
Consider long-term needs. If planning to keep the bed for 10+ years, investing in a slightly larger size often proves worthwhile. Bed size doesn't change after purchase, so choosing wisely at the outset prevents future dissatisfaction.
Bed Size Comparison – Storage & Capacity
All SoSoft beds are available with optional storage solutions. Larger beds offer greater storage potential for linens and bedroom essentials:
Single 3ft
Storage Depth: 26cm-39cm
Max Volume: 640 litres
Weight Capacity: 200-300kg
Small Double 4ft
Storage Depth: 26cm-39cm
Max Volume: 836 litres
Weight Capacity: 250-350kg
Double 4ft6
Storage Depth: 26cm-39cm
Max Volume: 947 litres
Weight Capacity: 300-450kg
King 5ft
Storage Depth: 26cm-39cm
Max Volume: 1,112 litres
Weight Capacity: 300-450kg
Super King 6ft
Storage Depth: 26cm-39cm
Max Volume: 1,346 litres
Weight Capacity: 300-450kg
Storage Options for Every Bed Size
SoSoft beds come with side lift or end lift mechanisms, each offering different internal dimensions to maximize usable storage space:
Side Lift Design
Opens along the long edge of the bed. Side lift beds maximize storage width, allowing larger items like duvets and bedding to be stored flat. Perfect for items requiring gentle handling.
End Lift Design
Opens from the foot end of the bed. End lift beds maximize accessible depth, ideal for storing boxes, suitcases, and compact items. Provides easier front access without reaching across the mattress.
Bed Size FAQs
What's the difference between a double and king bed?
A standard double (4ft6 / 135cm) is 135cm wide, while a king (5ft / 150cm) is 150cm wide – that's 15cm (6 inches) extra width. King beds also have longer dimensions (200cm vs 190cm for standard doubles).
Can a double bed fit in a small room?
Yes. A 4ft6 double (135cm) requires approximately 13m² of floor space when considering 1m clearance on all sides. For rooms under 11m², a single 3ft or small double 4ft would be more practical.
Is a single bed big enough for two adults?
A single 3ft bed (90cm wide) is technically possible for couples but cramped for long-term comfort. A small double 4ft (120cm) is the minimum recommended width for two adults. Standard doubles (135cm+) are ideal for couples seeking personal space.
Which bed size is most popular in the UK?
The 4ft6 standard double (135cm) is the UK's most popular bed size. It's the default specification in most new homes and offers the ideal balance between couple comfort and bedroom practicality.
Can you use mattresses from different size beds together?
No. Each bed size requires specifically-sized mattresses. A 3ft single mattress (90cm × 190cm) won't fit a double bed frame. Always purchase mattresses matching your exact bed dimensions.
Quality & Warranty Across All Sizes
Every SoSoft bed, regardless of size, includes:
2-Year Warranty
Structural frame, gas pistons, and hinges guaranteed against defects
Professional Assembly
Expert installation, safety checks, and debris removal included
Premium Materials
Reinforced timber frames with beechwood internal finishes
Safety Certified
EU Compliant, Fire Retardant BS7177 certified
Find your perfect bed size today. Browse our complete collection in single, double, king, and super king sizes. Free delivery & professional assembly available. 2-year warranty & expert customer service guaranteed. Shop SoSoft Beds now!