Open Coil Spring Mattresses

An open coil spring mattress has a series of interlinked coiled springs that provide high levels of support throughout the mattress. This allows the mattress to spread your weight evenly, which ensures your body will not be bearing too much pressure that can lead to aches and pains! They are also known as 'traditional spring mattresses' or 'Bonnell spring mattresses' and are among the most popular mattresses available because of their affordability and versatility.

What is a Bonnell spring mattress?

A Bonnell spring mattress is just another name for an open coil mattress or a traditional coil mattress.

The difference between open coil mattresses and pocket spring mattresses lies in their structure—open coil refers to a series of connected open coil springs, whilst pocket spring mattresses consist of hundreds or thousands of individual springs in a pocket of fabric.

With tons of support throughout, open coil mattresses provide excellent nights' sleep at a fraction of the cost of other mattress styles.

Open coil spring mattresses are among the lower-budget mattresses available. While this doesn’t mean that you have to compromise on quality or comfort, it does mean that you might need to replace them more often than other mattresses. A typical open coil spring mattress will last around 5 years - you can use it beyond that but may find that the strength of the springs, and therefore support, wears over that time.

Our range of open coil spring mattresses is available in our most popular bed sizes, including:

• Small single
• Single
• Small double
• Double
• King size
• Super king size

If you're not sure which mattress size you need, or which will fit into your bedroom, then make sure to read our mattress size guide for plenty of handy information.

Choosing the right firmness for your mattress depends on several factors, including how much support you need throughout the night and the position you prefer to sleep in. Our open coil mattresses have the following firmness options:

• Soft open coil spring mattresses - soft and comfortable, our soft open coil mattresses are perfect for those who love to sleep in bliss.
• Soft/medium open coil spring mattresses - providing a little extra support, a soft/medium open coil spring mattress helps protect pressure points while sleeping.
• Medium open coil spring mattresses - offering support whilst still being a little soft, a medium open coil spring mattress is ideal for various sleeping positions.
• Medium/firm open coil spring mattresses - adding a little firmness with a medium/firm open coil mattress is a great way to add extra support.
• Firm open coil spring mattresses - perfect for back sleepers to support your spine, our firm open coil mattresses offer the highest levels of support whilst remaining comfortable.

If you still need to decide what type of mattress is best for your needs, read our in-depth mattress buying guide for inspiration. We explore the various fillings and materials used within mattresses to help you make an informed choice for your new mattress.