Mansfield says that ensuring you’re cooler in the evenings may help with sleep. As he told : “I ended up getting ice burns on about 15% of my body.” Be warned, though: Dave Asprey – founder of Bulletproof, which sells high-performance products – once tried putting ice packs on his body right before bed. Lifestyle guru and entrepreneur Tim Ferriss recommends a short ice bath before bed. Non-techy strategies include having hands and feet out from under the covers, or using a fan. Generally, a lower-level temperature is better tolerated at night Darren Mansfield The idea is that lying down in a cool room – perhaps after taking a warm shower – tricks the body into slumber, since our body temperature drops when we’re asleep. Toner beds down on a Chilipad as soon as the weather gets warmer – a hydro-powered cooling mattress. ![]() He estimates having spent around $1,500 on them, and a further $3,500 for the sleep-centre treatment. Toner’s accumulated a few as the technology becomes more sophisticated. Sleep-monitoring wearables have progressed from having an accelerometer to track movements which are fed through an algorithm to predict when a person is asleep, to being able to track sleep latency sleep efficacy heart-rate variability light, deep and REM sleep and sleeping positions. He decided to start monitoring his body in earnest, learning about the latest devices from the Huberman Lab Podcast and The Quantified Scientist. Photograph: Winni Wintermeyer/The Guardian “There will be some error margin, but nonetheless when we’re looking for diagnostic information, like timing of sleep and duration of sleep, they can capture that,” he says.Īn Oura smart ring, designed to measure resting heart rate, heart rate variability, respiratory rate, body temperature, light, deep and REM sleep as well as night-time movements and sleep duration. That might escalate any problems, or even start creating problems.”Īs a clinician, Mansfield thinks that the most useful role of these devices is monitoring routine, not obsessing over the hours of good-quality sleep. Where it can become problematic is people can become a bit enslaved by the data, which can lead to anxiety or rumination over the results and significance. “They’re not as accurate as a laboratory-based sleep study, but they are progressing in that direction, and technology enables the person to be engaged in their health. “These devices in general can be a good thing,” he says. Wearables, such as watches, rings and headbands, appeal to those of us who enjoy geeking out on our stats, but could they also be cultivating anxiety and feeding into insomnia? Associate Prof Darren Mansfield, a sleep disorders and respiratory physician who is also deputy chair of the Sleep Health Foundation, thinks some balance is needed. ![]() ![]() People can become a bit enslaved by the data, which can lead to anxiety or rumination Darren Mansfield, the Sleep Health Foundation “If I can get close to 80%, I’m golden for the day,” Marcus told the authors of My Morning Routine. ![]() In recent years, sleep-fretting has intersected with fitness-tracking, with the latest bio-hacks regularly featured on the podcasts of personal-development heavyweights such as Joe Rogan, whose Whoop Strap – worn around the wrist – told him he was getting four or five hours a night, not the seven or eight he’d thought and Aubrey Marcus, whose Oura ring measures various biomarkers overnight and gives him a total score in the morning.
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