The Benefits of a UK King Size Mattress (150cm) – Why Bigger Really Is Better
Posted by Tom Hughes on
When it comes to improving sleep quality, one of the most effective yet often overlooked upgrades is simply choosing the right mattress size. For many UK households, the king size mattress (150cm x 200cm) strikes the perfect balance between space, comfort, and practicality.
In this blog, we’ll explore the benefits of a UK king size mattress, why it might be the ideal choice for your bedroom, and how it compares to other standard mattress sizes.
What Is a King Size Mattress?
A UK king size mattress measures 150cm wide by 200cm long (approximately 5ft x 6ft 6in). It’s wider and longer than a standard double (135cm x 190cm), providing additional room for couples or solo sleepers who prefer extra space to stretch out.
King Size Mattress Dimensions:
- Width: 150cm (5ft)
- Length: 200cm (6ft 6in)
- Recommended Room Size: At least 10ft x 10ft (3m x 3m) for optimal comfort and accessibility
Key Benefits of a King Size Mattress
1. More Space for Better Sleep
A king size mattress gives each sleeper 75cm of personal space, a similar space as a single bed per person. This can reduce sleep disturbances caused by a partner's movements, making it ideal for light sleepers or those who share a bed with a partner (or pets!).
2. Improved Comfort and Sleep Posture
Extra space allows for better spinal alignment and sleeping posture. Whether you're a back, side, or stomach sleeper, having room to move without feeling confined helps reduce aches, pains, and morning stiffness.
3. Ideal for Couples
Sharing a double bed can feel cramped over time. A king mattress offers ample room for two people to sleep soundly without bumping into each other - and helps prevent common issues like partner disturbance or overheating.
4. Perfect for Growing Families
If your children or pets often sneak into bed in the early hours, a king size mattress provides extra space without sacrificing sleep quality.
5. Adds a Luxurious Feel to Your Bedroom
A king bed can instantly make a bedroom feel more spacious and luxurious. It’s the size you’ll often find in high-end hotels — and for good reason.
King Size vs Other Mattress Sizes
| Size | Dimensions (cm) | Best For |
|---|---|---|
| Single | 90 x 190 | Children, guest rooms |
| Small Double | 120 x 190 | Solo sleepers with limited space |
| Double | 135 x 190 | Couples on a budget or in smaller bedrooms |
| King | 150 x 200 | Couples, families, luxury bedroom setups |
| Super King | 180 x 200 | Maximum space, large bedrooms |
Choosing the Right King Size Mattress
When selecting a king size mattress, consider:- Type: Pocket sprung, memory foam, hybrid, or natural fillings
- Firmness: Soft, medium, or firm depending on your sleep style
- Features: Pillowtop comfort, edge support, motion isolation, cooling properties
Will a King Size Fit in My Room?
Before buying, measure your room and ensure:- There’s at least 60cm clearance on each side of the bed
- Doors and wardrobes can open freely
- There's enough space for bedside tables