Discover the ideal small double mattress at Mattresses365, offering the perfect balance between the comfort of a double mattress and the space-saving benefits of a smaller design. Measuring approximately 4ft wide (120cm x 190cm), small double mattresses are an excellent choice for couples, teenagers, guest rooms and bedrooms where space is limited.

Our collection includes a wide range of small double pocket sprung mattresses, memory foam mattresses, hybrid mattresses and rolled mattresses from trusted UK manufacturers. Whether you prefer supportive springs, pressure-relieving foam or a combination of both, you can find a mattress designed around your comfort needs.

Ideal for couples needing extra space without a full double size
Perfect for guest rooms and smaller bedrooms
Pocket sprung, memory foam and hybrid designs available
Choice of soft, medium and firm comfort levels
Selected models available with Next Day Delivery

Choosing the Right Small Double Mattress

A small double mattress is a popular choice for those who want more sleeping space than a single mattress without taking up the room required by a standard double. Also known as a 4ft mattress, this size provides a comfortable sleeping area while helping maximise bedroom space.

When choosing your small double mattress, consider your preferred sleeping position, firmness preference and the type of comfort you enjoy. Our collection includes everything from supportive pocket sprung mattresses to cushioning memory foam and advanced hybrid designs.

Need Help Choosing Your Small Double Mattress?

Choosing the right mattress can make a big difference to your comfort and quality of sleep. If you are unsure which mattress type, firmness level or size is right for you, our expert guides are here to help you make the right choice.

Explore our helpful advice guides to compare mattress materials, understand different support systems and find the perfect mattress size for your bedroom.

Mattress Buying Guide

Learn everything you need to know before choosing a new mattress, including mattress types, comfort levels, materials and key features to consider.

Explore Our Mattress Buying Guides →

Mattress Size Guide

Not sure whether a small double mattress is the right size? Compare UK mattress dimensions and find the best fit for your bedroom and bed frame.

View Our Mattress Size Guide →

Small Double Pocket Sprung Mattresses

Small double pocket sprung mattresses feature individually wrapped springs that respond independently to your body. They provide tailored support, reduced movement transfer and improved airflow, making them a great choice for couples and individual sleepers.

Small Double Memory Foam Mattresses

Small double memory foam mattresses mould around your body shape to provide pressure relief and a comfortable sleeping surface. They are ideal for sleepers looking for cushioning comfort and reduced pressure on key areas.

Small Double Hybrid Mattresses

Small double hybrid mattresses combine pocket springs with comfort layers such as memory foam or latex. This creates a balanced sleeping experience with responsive support, pressure relief and breathability.

Small Double Rolled Mattresses

Small double rolled mattresses are compressed for convenient delivery and easier installation. They are ideal for bedrooms where access or setup needs to be simple and hassle-free.

Who Is a Small Double Mattress Suitable For?

Couples With Limited Space – Provides more room than a single mattress while fitting smaller bedrooms.
Teenagers – Offers extra sleeping space and comfort as they grow.
Guest Bedrooms – Creates a comfortable sleeping solution without taking up too much room.
First Homes & Apartments – A practical choice where bedroom space is limited.
Single Adults – Provides additional room for those who prefer extra sleeping space.

What Firmness Small Double Mattress Should I Choose?

Soft Small Double Mattresses – Ideal for sleepers wanting a plush, cushioned and relaxing feel.
Medium Small Double Mattresses – The most popular option, offering a balanced combination of comfort and support.
Firm Small Double Mattresses – Designed for sleepers who prefer stronger support and a more stable feel.

Small Double Mattress Size Guide

A standard UK small double mattress measures approximately: 120cm wide x 190cm long (4ft x 6ft3").

This size provides a useful middle ground between a single and double mattress, making it ideal for couples, teenagers, guest rooms and smaller bedrooms.

Always check your bed frame measurements before purchasing to ensure your new mattress fits correctly.

Why Buy Your Small Double Mattress From Mattresses365?

At Mattresses365, we offer a carefully selected collection of small double mattresses from trusted manufacturers, helping you find the perfect balance of comfort, quality and value.

✔ Wide choice of small double mattresses

✔ Pocket sprung, memory foam and hybrid options

✔ Trusted UK mattress brands

✔ Competitive prices

✔ Next Day Delivery available on selected models

✔ Manufacturer guarantees included

✔ Expert mattress advice

Small Double Mattress FAQs

What size is a small double mattress?

A standard UK small double mattress measures approximately 120cm x 190cm (4ft x 6ft3").

Is a small double mattress suitable for couples?

Yes. Small double mattresses can comfortably accommodate couples who want more space than a single mattress while saving bedroom space compared with a standard double.

What is the difference between a small double and a double mattress?

A small double mattress is 4ft wide, while a standard double mattress is 4ft6 wide. The small double is ideal where space is limited.

Is a small double mattress suitable for adults?

Yes. Small double mattresses are suitable for adults, especially single sleepers wanting extra room or couples with limited bedroom space.

Are small double mattresses available with next day delivery?

Many small double mattresses are available with next day delivery depending on the model selected.

Small Double Mattresses