The short answer is: Yes, and according to the 2026 guidelines, you should.
Historically, first aid training often taught that you must move a casualty to a firm, flat floor to ensure compressions are effective. However, the Resuscitation Council UK Guidelines 2025/2026 have shifted this stance based on a critical trade-off: speed vs. surface.
Why the Shift?
Research now shows that the time lost and the risk of injury involved in dragging an unresponsive person from a bed to the floor often outweigh the benefits of a firmer surface.
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Mattress Absorption: While it is true that a soft mattress can absorb up to 50-60% of the force of a chest compression, modern guidance suggests compensating with technique rather than relocating the patient.
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The “No Delay” Rule: Every second without compressions leads to a drop in coronary perfusion pressure. By staying on the mattress, you can start life-saving cycles immediately.
CPR on a Mattress Guidelines UK 2026: The Step-by-Step Protocol
Performing CPR on a soft surface requires specific adjustments to ensure your force reaches the heart and doesn’t just squish the springs of the mattress.
1. Initial Assessment (The New Call-First Rule)
As of 2026, the “check breathing” step has been streamlined. If a person is unresponsive, call 999 immediately before you even begin checking for breathing.
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Use your phone’s speakerphone.
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The call handler is now trained to help you recognise “agonal gasps” (laboured, irregular breaths), which are a sign of cardiac arrest.
2. Prepare the Bed Surface
You do not need to move the person, but you should “optimise” the environment:
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Remove all pillows: This ensures the head is flat and the airway is easier to manage.
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Flatten the bed: If it’s a profiling hospital bed, use the “CPR” emergency release button to flatten it instantly.
3. Positioning the Rescuer
To counter the “bounce” of the mattress, you need more leverage than usual.
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Kneel on the bed: Instead of kneeling on the floor beside the bed, get onto the mattress right next to the casualty’s chest. This allows your body weight to be directed vertically.
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Straight Arms: Lock your elbows. Your shoulders should be directly over the centre of their chest.
4. Adjusting Compression Depth
The standard adult depth is 5–6 cm. On a mattress, you may need to “push through” the soft surface.
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The “Sink” Factor: You are aiming for 5–6 cm of chest compression. If the mattress is sinking, you must push harder and deeper to ensure the heart is actually being squeezed.
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Full Recoil: This is the hardest part of a mattress. You must ensure that the chest comes all the way back up without your hands leaving the skin.
What Are the Changes in the Resus Guidelines 2025/2026?
The transition from the 2021 guidelines to the 2025/2026 standards introduced several “Links in the Chain of Survival” updates:
| Feature | Previous Guidance | 2026 Update |
| Surface Priority | Move to floor if possible. | Stay on the bed; do not delay CPR. |
| Emergency Call | Check breathing for 10s, then call. | Call 999 first if unresponsive. |
| AED Pad Placement | Standard right-upper, left-lower. | New emphasis on “Mid-Axillary” line for the left pad. |
| Modesty/Gender | General guidance. | Explicit instruction: Do not delay for modesty; bras can stay if they don’t block pads. |
| Drowning | 30:2 (Mainstream). | 5 Initial Rescue Breaths are back for all drowning cases. |
Understanding the CPR Ratio for Adults 2026
The ratio remains the cornerstone of Basic Life Support (BLS). For adults in 2026:
The Ratio is 30:2 > 30 Chest Compressions followed by 2 Rescue Breaths.
Speed and Depth Specifics:
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Rate: 100–120 compressions per minute (to the beat of “Stayin’ Alive” or “Queen of Hearts”).
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Depth: 5–6 cm.
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Rescue Breaths: Each breath should take about 1 second and make the chest rise visibly.
Note on Hands-Only CPR: If you are untrained or unable to give rescue breaths, the UK guidelines strongly advocate for Continuous Chest Compressions. The 999 call handler will coach you through this.
The Role of Technology: AEDs in 2026
The 2026 guidelines place heavy emphasis on the “Public Access Defibrillator” (PAD). In London and surrounding areas, the density of AEDs has increased, and their use is more critical than ever.
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Pad Positioning: The 2025/2026 updates specify that the “apical” pad (the one on the left side) should be placed vertically under the armpit. This ensures the maximum electrical current passes through the ventricles of the heart.
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Paediatric Settings: For children, the “Front and Back” placement is now the gold standard to ensure the smaller heart receives the shock effectively.
Specialist Situations: Drowning and Children
While the CPR on a mattress guidelines UK 2026 focus on the adult in a bed, the 2026 updates have brought “Rescue Breaths” back to the forefront for specific scenarios:
Drowning Protocols
If a casualty is recovered from water, the primary issue is hypoxia (lack of oxygen).
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The 5-Breath Start: You must give 5 initial rescue breaths before starting compressions.
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Why? In drowning, the heart has often stopped because the lungs are empty of oxygen. Providing that oxygen first can be the key to “restarting” the system.
Paediatric Changes
For children (1 year to puberty), the ratio is still 15:2 for healthcare professionals, but the general public is encouraged to use 30:2 if that is what they are trained in, provided they start with 5 initial breaths.
Why Choose Practical First Aid for Your Training?
At Practical First Aid, we don’t just teach from a book; we teach for the real world. Our London-based courses are fully updated with the latest CPR advice UK 2026, ensuring you are compliant with the most recent Resuscitation Council standards.
Whether you need a Level 3 First Aid at Work certificate or a basic BLS refresher, we provide hands-on experience using the latest feedback manikins that can simulate different surfaces, including mattresses.
Our Training Covers:
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Hands-on CPR Technique: Mastering the 100–120 bpm rhythm.
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AED Confidence: Using various models of defibrillators.
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Mattress Scenarios: Learning how to position yourself for maximum efficiency on soft surfaces.
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Legal & Ethical Updates: Understanding the 2026 stance on “Duty of Care” and “Consent” in emergencies.
Summary: The 2026 Essentials
If you find someone unresponsive on a bed today:
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Shout for help.
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Call 999 (Speakerphone on).
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Check for normal breathing (Ignore gasps).
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Stay on the bed. Remove pillows.
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Kneel on the mattress and start 30 compressions.
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Push deep and fast (5–6 cm depth).
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Don’t stop until help arrives or an AED is ready.
The science is clear: CPR on a mattress is no longer the “wrong” way to do it—it’s the fastest way to save a life. By staying put and focusing on high-quality, deep compressions, you give the casualty the best possible chance of recovery.
Ready to gain the skills that save lives?
Don’t wait for an emergency to realise you’re using outdated techniques. Join one of our expert-led sessions in London today.
