Sleep Specialist Explains the Impact of Losing an Hour
As British Summer Time officially began on Sunday, March 29, with clocks moving forward from midnight to 2am, many Londoners are grappling with the effects of losing a precious hour of sleep. While the arrival of spring brings brighter evenings, it also triggers drowsiness and mood changes for numerous individuals.
Who Feels the Change Most Acutely?
According to David Garley, a GP and Director of The Better Sleep Clinic, the impact of the time shift varies significantly based on an individual's existing sleep patterns. "People who generally sleep okay are unlikely to feel much impact from the clocks going forward," Garley explained. "For instance, when people fly to France where the time zone changes, they often don't notice it too much."
However, those with pre-existing sleep challenges face a different reality. "Sleep disorders are really common, with insomnia affecting approximately 10% of the adult population globally," Garley noted. "Many people experience sleep issues but don't meet the clinical threshold for a diagnosed disorder."
The Tipping Point for Vulnerable Sleepers
For individuals already operating on minimal sleep, the lost hour can prove particularly disruptive. "Consider someone who typically gets six hours of sleep during winter," Garley illustrated. "When clocks spring forward, that hour is cut, reducing their sleep to just five hours. This shortening can significantly affect their wellbeing."
Garley emphasized that while most people adapt reasonably well, "those existing on that threshold, struggling with sleep, may find that hour tips the balance" toward more pronounced daytime fatigue and cognitive impairment.
Expert Strategies for Coping with the Time Change
A sleep expert from Sleepeezee highlighted the importance of consistency in sleep routines. "Going to bed and waking at the same time daily, even on weekends, reinforces your body's natural circadian rhythm," the expert advised. "This helps your body recognize when to wind down, making it easier to fall asleep despite clock changes."
Garley offered practical recommendations for different sleep profiles:
- For generally good sleepers: "Try getting into bed 30 minutes earlier to offset the earlier morning start."
- For habitual poor sleepers: "If poor sleep regularly impacts your daytime functioning, consider consulting your GP or a sleep clinic."
He added reassuringly that "humans possess natural resilience to endure occasional nights of poor sleep," but persistent issues warrant professional attention.
The Broader Context of Sleep Health
The transition to British Summer Time serves as an annual reminder of sleep's critical role in overall health. With insomnia affecting millions worldwide and many more experiencing suboptimal sleep, understanding individual vulnerability to time changes becomes increasingly important for maintaining productivity and wellbeing throughout the spring and summer months.
