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Instead of an open glass of water, try:
A vacuum-sealed insulated bottle (keeps water clean and cool)
A covered ceramic or stainless steel cup with a lid
An automatic water dispenser with a hygienic spout
Frequently Asked Questions:
Is it dangerous to drink water left out overnight?
It’s not necessarily dangerous, but the water can become stale, collect dust, and even serve as a breeding ground for microbes—especially in warm or humid environments.
Can bugs or pests get into the water?
Yes. Insects like mosquitoes and small flies may be attracted to stagnant water, and dust mites may settle in the glass. Some people have even reported finding spiders or other bugs in their glass by morning.
Does the water taste different?
Yes. Water can absorb carbon dioxide from the air, slightly altering its pH and taste. This often results in a flat or metallic taste the next day.
Could it be harmful to electronics nearby?
Definitely. A knocked-over glass of water can damage phones, alarm clocks, lamps, or chargers typically found on a bedside table.
Is it just better to hydrate before bed and after waking up?
Exactly. Drink a small glass of water before bed if you're thirsty, and keep a sealed bottle by your bed if you anticipate needing more during the night.
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