Sudden increase in pulse during sleep that settles on waking is usually due to night-time sympathetic surge, vivid dreams, anxiety, reflux, dehydration, caffeine intake, or transient rhythm changes. A heart rate of ~130 can occur briefly during REM sleep or arousal.
Next Steps
What helps:
• Avoid caffeine, smoking, heavy meals before sleep
• Stay hydrated
• Manage stress and maintain regular sleep schedule
• Avoid late-night screen use
Health Tips
Consult a doctor if:
• episodes become frequent or prolonged
• associated chest pain, dizziness, breathlessness, or fainting
• pulse remains high after waking
A resting ECG and Holter monitoring can be done if symptoms persist for reassurance.