Obstructive sleep apnoea affects up to 4% of the population, but the majority of cases are undiagnosed.
Among the conditions examined by the St Thomas' team were obstructive sleep apnoea (OSA) and restless leg syndrome (RLS).
The research team are now working on a simple questionnaire can be used to measure how sleep apnoea affects quality of life.
He also suffered from sleep apnoea, a condition that resulted in him jolting awake several times a night due to breathing problems.
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The BLF's map was produced by combining known risk factors for Obstructive sleep apnoea - such as obesity, age and sex - with demographic information.
In England, he said people must have a Body Mass Index (BMI) of 35 with related health problems, such as diabetes or sleep apnoea, or 40 without.
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Smaller, less invasive, sensors could be especially useful for monitoring premature babies or for studying patients with sleep apnoea without them wearing wires through the night, researchers say.
Sleep apnoea is a condition which is more common in people who are overweight but it can also occur in slim people due to the physiology of the throat.
John Stradling, professor of respiratory medicine at the Oxford Centre for Respiratory Medicine, told BBC News Online said the Quebec findings fitted in with what he had suspected about sleep apnoea's links with psychological illness.
If snoring is combined with feeling sleepy during the day and experiencing pauses in breathing during sleep, people may be suffering from the more serious sleep apnoea - which affects 10 to 20% of snorers - and should see their GP.
After John returns in the evening bubbling with self-aggrandising chatter, he quickly falls prey to a ferocious case of sleep apnoea that exacerbates Charlotte's own case of jet lag and eventually leads to a series of accidental, then not so accidental, encounters with Bob in the bar.
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