1 In the interests of safety and hygiene please ensure that your Thermos flask is cleaned with warm water and washing-up liquid prior to initial use.  For best results from your flask, before use, pre-fill for about 3 minutes, using either hot water for hot drinks or cold water for chilled drinks.
Extrapolating these findings to the general population, the authors estimated that 8 million elderly persons nationwide have insomnia on any given day, more than 1 million new cases of insomnia develop each year, and symptoms resolve in nearly 1.3 million elderly persons annually.
Insomnia. This is one of the most common sleep disorders. Most people experience insomnia at least once in their lives, and as many as 9% to 15% of the general population reports chronic symptoms that cause significant daytime impairments.bstructive Sleep Apnea. Of all the sleep disorders, obstructive sleep apnea (commonly referred to as Sleep Apnea) is certainly the most talked about. Sleep Apnea affects between 4-20% of adult men.