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Study Reveals Ideal Bedroom Temperature for Better Sleep

2/13/2026

Summary

Story summary

Griffith University research finds that 24°C (75°F) in a bedroom reduces stress during sleep for adults aged 65 and older.
Led by Dr. Fergus O'Connor of Griffith University, the study tracked heart rates and bedroom temperatures across Australian summer.
Findings show higher bedroom temperatures increase heart rates and stress, reducing sleep quality.
Dr. Fergus O'Connor notes higher nighttime temperatures could worsen cardiovascular health because guidelines for nighttime temperature are lacking.

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Story summary

Griffith University research finds that 24°C (75°F) in a bedroom reduces stress during sleep for adults aged 65 and older.
Led by Dr. Fergus O'Connor of Griffith University, the study tracked heart rates and bedroom temperatures across Australian summer.
Findings show higher bedroom temperatures increase heart rates and stress, reducing sleep quality.
Dr. Fergus O'Connor notes higher nighttime temperatures could worsen cardiovascular health because guidelines for nighttime temperature are lacking.