France heatwave sparks sleep advice: cooling tricks and mattress guidance

A record-breaking heat wave in France pushed temperatures to unprecedented levels, prompting sleep specialists to share practical tips for maintaining restful nights without relying on energy‑intensive air‑conditioning. Dr. Allie Hare of Guy's and St Thomas' Hospital explained that the body must lower its core temperature by 1–2 °C to fall asleep, and the sweltering indoor environment hampers this process. Professor Russell Foster suggested simple cooling methods such as placing a bowl of ice before a fan, using breathable cotton sleepwear, or even chilling pajamas briefly before bedtime.

Alongside temperature‑related advice, experts highlighted the importance of an appropriate mattress for spinal alignment and pressure distribution. Selecting a mattress that matches the sleeper’s morphology, preferred sleeping position, and firmness preference can reduce nocturnal micro‑arousals that exacerbate fatigue, especially during hot nights. Combining a supportive mattress with effective room‑cooling strategies can help sleepers achieve deeper, more restorative sleep despite extreme heat.