Best Mattress for Side Sleepers in the UK: How to Choose the Right Mattress

If you sleep on your side, the best mattress is usually a medium to medium-firm mattress that cushions your shoulders and hips while keeping your spine properly aligned. For most people, a hybrid mattress or a memory foam mattress provides the best balance of pressure relief and support. If you prefer a more responsive feel, a pocket sprung mattress with a plush comfort layer is also an excellent choice.

The right mattress also depends on your body weight, whether you experience shoulder or hip discomfort, and your preferred sleeping position. This guide explains what to look for and how to choose the best mattress for your needs.

Side sleeping is the most common sleeping position in the UK, and for good reason. It can help reduce snoring, support healthy spinal alignment, and, for many people, lead to a more comfortable night's sleep.

However, sleeping on your side also places more pressure on your shoulders and hips than other sleeping positions. If your mattress is too firm, these pressure points can become uncomfortable. If it's too soft, your body may sink too deeply, leaving your spine unsupported.

Finding the right balance is key.

In this guide, we'll explain what makes a mattress suitable for side sleepers, compare the most popular mattress types and help you choose the right firmness based on your sleeping habits and body type.

Key Takeaways

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For most side sleepers, a medium or medium-firm mattress offers the best combination of comfort and support.

When you sleep on your side, your shoulders and hips naturally press further into the mattress than the rest of your body. A mattress needs enough cushioning to relieve pressure around these areas while still supporting your waist and lower back.

If a mattress is too firm, your shoulders and hips may not sink in enough, creating uncomfortable pressure points.

If it's too soft, your spine can fall out of alignment, which may lead to stiffness when you wake up.

Firmness Guide

For most adults, medium to medium-firm mattresses provide the most comfortable sleeping experience.

What Should Side Sleepers Look for in a Mattress?

Not every mattress is designed with side sleepers in mind.

Here are the most important features to consider before buying.

Pressure Relief

Pressure relief is one of the biggest factors.

Your shoulders and hips carry much of your body weight when sleeping on your side, so the mattress should cushion these areas rather than pushing back against them.

Materials such as memory foam and pressure-relieving comfort layers perform particularly well.

Spinal Alignment

A good mattress keeps your head, shoulders, hips and lower back in a relatively straight line while you sleep.

When your spine stays properly aligned, you're less likely to wake up with stiffness or discomfort.

Motion Isolation

If you share your bed, motion isolation becomes more important.

Memory foam and hybrid mattresses usually absorb movement more effectively than traditional open spring mattresses, helping you sleep undisturbed when your partner moves during the night.

Edge Support

Strong edge support allows you to use the full sleeping surface without feeling like you're rolling towards the edge.

This can be especially useful if you share a smaller bed.

Temperature Regulation

Some people naturally sleep warm.

Pocket sprung and hybrid mattresses generally allow better airflow than all-foam models, helping regulate temperature throughout the night.

Memory Foam vs Pocket Sprung for Side Sleepers

Both mattress types can work well for side sleepers, but they provide different sleeping experiences.

Memory Foam Mattress for Side Sleepers

Memory foam responds to your body shape, allowing your shoulders and hips to sink gently into the surface.

This helps spread body weight more evenly and reduces pressure points.

Advantages

• Excellent pressure relief
• Supports spinal alignment
• Great motion isolation
• Ideal for shoulder and hip comfort

Things to Consider

• Can retain more heat than sprung mattresses
• Some people prefer a more responsive sleeping surface

Pocket Sprung Mattress for Side Sleepers

Pocket sprung mattresses contain individually wrapped springs that move independently.

Rather than contouring closely to the body, they provide responsive support while maintaining excellent airflow.

Advantages

• Naturally breathable
• Responsive feel
• Good edge support
• Wide choice of comfort levels

Things to Consider

• Pressure relief depends on the comfort layer
• Lower-quality models may not cushion pressure points as effectively

Hybrid Mattress for Side Sleepers

Hybrid mattresses combine pocket springs with layers of memory foam or other comfort materials.

This allows sleepers to enjoy the pressure relief of foam while benefiting from the support and airflow of pocket springs.

For many people, hybrid mattresses offer the best overall balance.

Advantages

• Excellent pressure relief
• Good airflow
• Responsive support
• Suitable for most body types
• Popular choice for couples

Comparison Table

Expert Recommendations

Choose a Memory Foam Mattress if:

• You want maximum pressure relief.
• You experience discomfort around your shoulders or hips.
• You sleep alone or are easily disturbed by movement.

Choose a Pocket Sprung Mattress if:

• You prefer a more traditional mattress feel.
• You tend to sleep warm.
• You like a responsive sleeping surface.

Choose a Hybrid Mattress if:

• You want the benefits of both foam and springs.
• You share your bed with a partner.
• You're looking for the best all-around mattress for side sleeping.
• You want pressure relief without sacrificing support.

For many UK households, a quality hybrid mattress strikes the ideal balance of comfort, support and durability, making it one of the strongest choices for side sleepers.

What Is the Best Mattress for Side Sleepers with Shoulder Discomfort?

Shoulder discomfort is one of the most common complaints among side sleepers. Because much of your upper body weight rests on one shoulder, a mattress that is too firm can create excess pressure, while one that is too soft may allow your body to sink too far.

The best mattress for side sleepers with shoulder discomfort should cushion the shoulder without compromising spinal alignment.

In most cases, a memory foam mattress or a hybrid mattress with a pressure-relieving comfort layer is the best choice.

Features to look for

• Medium or medium-firm feel
• Pressure-relieving comfort layers
• Zoned support to keep the spine aligned
• Good motion isolation if sharing the bed

If you regularly wake with shoulder stiffness, your pillow may also be contributing to the problem. Choosing the right pillow height can help keep your neck and shoulders properly aligned throughout the night.

What Is the Best Mattress for Side Sleepers with Hip Discomfort?

Side sleepers also place significant pressure on their hips.

When a mattress is too firm, the hips may not sink into the surface enough, creating pressure points. If it's too soft, the hips may sink too deeply, causing the lower back to fall out of alignment.

The ideal mattress provides gentle cushioning while supporting the body's natural curves.

Hybrid mattresses are often an excellent option because they combine pressure relief with responsive support.

Memory foam mattresses are another popular choice, particularly for people who prefer a closer, more contouring feel.

A good mattress for hip comfort should provide:

• Even weight distribution
• Pressure relief around the hips
• Stable lower back support
• Consistent support across the sleeping surface

Best Mattress Firmness Based on Body Weight

Body weight plays an important role in how a mattress feels.

A mattress that feels medium to one person may feel firm or soft to someone else.

Lighter sleepers generally benefit from softer comfort layers that allow their shoulders and hips to sink comfortably.

Heavier sleepers often require a slightly firmer mattress to prevent excessive sinking while maintaining proper spinal support.

How to Choose a Mattress for Side Sleeping

Buying a mattress online can feel overwhelming, especially with so many materials and firmness levels available.

Instead of focusing on marketing claims, think about how you sleep each night.

Consider your sleeping position

If you spend most of the night on your side, pressure relief should be your priority.

Choose a mattress that cushions your shoulders and hips while supporting your lower back.

Think about your body weight

As shown above, body weight influences how firm a mattress feels.

Selecting the right firmness for your weight helps improve both comfort and long-term support.

Decide how you like your mattress to feel

Some people enjoy the body-hugging feel of memory foam.

Others prefer the slightly bouncier, more responsive feel of pocket springs.

If you're unsure, a hybrid mattress often provides the best balance of both.

Consider temperature

If you tend to sleep warm, look for breathable materials.

Pocket sprung and hybrid mattresses usually allow better airflow than all-foam designs.

Don't overlook edge support

Strong edge support makes getting in and out of bed easier and allows you to use the full sleeping surface comfortably, especially if you share the bed.

Which Mattress Is Best Overall?

There's no single mattress that's perfect for everyone, but some mattress types consistently perform well for side sleepers.

For many people, a medium hybrid mattress offers the best combination of pressure relief, support, durability and temperature regulation.

Expert Recommendations

Choose a Memory Foam Mattress if:

• You experience regular shoulder discomfort.
• You prefer a body-contouring feel.
• Motion isolation is important.

Choose a Pocket Sprung Mattress if:

• You prefer a more traditional mattress.
• You tend to sleep warm.
• You like a more responsive surface.

Choose a Hybrid Mattress if:

• You want the benefits of both foam and springs.
• You share your bed with a partner.
• You want balanced comfort and support.
• You're unsure which mattress type will suit you best.

For most side sleepers in the UK, a medium hybrid mattress offers the best all-round performance.

Final Thoughts

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Finding the best mattress for side sleepers isn't about choosing the softest mattress available. Instead, it's about finding the right balance between pressure relief and support.

For most people, a medium or medium-firm mattress provides the ideal sleeping surface. Memory foam is excellent for relieving pressure around the shoulders and hips, while pocket sprung mattresses offer breathability and responsive support. Hybrid mattresses combine the strengths of both, making them one of the best choices for many households.

Before buying, consider your body weight, preferred sleeping position, and any areas of discomfort you experience. A mattress that suits your individual needs can improve comfort, help you wake feeling refreshed and support better sleep for years to come.

If you're looking to upgrade your sleep, explore our range of Mattresses, including Memory Foam Mattresses, Pocket Sprung Mattresses and Hybrid Mattresses, to find the option that's right for you.