Best Sleeping Position for Heart Palpitations | Mattress Miracle

You are lying in bed and suddenly you feel it: a flutter in your chest, a skipped beat, a pounding sensation that was not there a second ago. Heart palpitations at night are alarmingly common and often harmless, but they are always unsettling. Your sleeping position can make them better or worse, and understanding why helps you take control of a sensation that otherwise feels completely random.

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Important: Heart palpitations can be benign or they can signal a cardiac condition. This article discusses sleeping positions that may reduce the sensation of palpitations. It is not a substitute for medical evaluation. If palpitations are new, frequent, accompanied by chest pain, shortness of breath, or dizziness, see your doctor or go to the emergency department.

Why Palpitations Feel Worse at Night

Palpitations often feel worse at night for a simple reason: you notice them more. During the day, your brain is occupied with tasks, conversations, and movement. At night, lying still in a quiet room, there are no distractions. Your awareness of internal sensations increases. The heart has been doing the same thing all day, but you only feel it when everything else goes silent.

There are also physical factors. Lying down changes blood distribution in the body, altering how much blood returns to the heart with each beat (preload). This can slightly change heart rhythm, particularly in people with benign premature ventricular contractions (PVCs) or premature atrial contractions (PACs), the most common types of palpitations.

Eating a heavy meal before bed, consuming caffeine or alcohol in the evening, and dehydration can all trigger palpitations. Before focusing on sleep position, these factors are worth examining.

Left Side vs. Right Side

Many people notice palpitations more when lying on their left side. This is not coincidence. Your heart sits slightly left of centre in your chest. When you lie on your left side, the heart shifts closer to the chest wall due to gravity. This proximity amplifies the physical sensation of each heartbeat. A premature beat that you would never notice while standing can feel like a thud when your heart is pressed against the ribs and chest wall.

Right-side sleeping moves the heart slightly away from the chest wall, reducing the sensation. The heartbeat may still be irregular, but you feel it less. For many people with benign PVCs or PACs, simply switching from left to right side sleeping reduces the perceived frequency of palpitations, even though the actual frequency may be unchanged.

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Back Sleeping with Elevation

Back sleeping distributes the heart's weight centrally rather than pressing it against either side of the chest wall. For some people, this is the most comfortable position for palpitations. Adding slight elevation (15 to 30 degrees) with an adjustable bed base can further help by changing blood distribution and reducing the volume of blood returning to the heart, which may reduce the triggering of premature beats.

If you use an adjustable base, experiment with the angle. A small incline (just enough to feel slightly propped up) is usually sufficient. Extreme elevation is not necessary and can cause neck strain.

When to See a Doctor

Occasional palpitations that last a few seconds and resolve on their own are usually benign. See your doctor if:

• Palpitations are new and have not been evaluated
• They last longer than a few seconds or occur in sustained episodes
• They are accompanied by chest pain, shortness of breath, dizziness, or fainting
• They are getting more frequent over weeks or months
• You have a family history of heart conditions or sudden cardiac events
• You have been diagnosed with a heart condition

Your family doctor can order an ECG or a Holter monitor (a 24-48 hour heart recording) to determine whether the palpitations are benign or require treatment. In Ontario, these tests are covered by OHIP when ordered by a physician.