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Here's a helpful tip...

If a lingering cold and a sudden intense bout of insomnia has made your nights (and hence days) a living hell of misery and anguish, going through your medicine cabinet to collect two of everything marked “nighttime”, “sleep aid”, or with warnings about operating heavy machinery... may not be as good a solution as it first appears. This Noah's Ark of drugs will indeed help you finally get sleep, but waking up then becomes problematic. Furthermore, long after finally waking, your brain continues to live in a groggy haze not unlike that of the sleep-deprived head-cold misery you were trying to relieve in the first place.

This helpful tip brought to you by Me and Charles Darwin.