Sponge
Our story
The Story Behind Sponge
Sponge started with an ambulance ride that an IV fixed in under an hour. Here is how two grandparents, a coaster and a lot of water bottles turned into the tracker we make today.
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Hydration, explained
Science-backed guides on drinking more water and getting the most from your hydration tracker.
The problem
The Dehydration Problem: Who It Hurts, Why the Usual Fixes Fail, and What We Are Doing About It
Dehydration sends older adults to hospital, shows up in kidney stones, infections and headaches, and is remarkably hard to spot. Here is what the research actually says, including where it is weaker than the headlines.
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Hydration science
How Much Water Should You Actually Drink a Day?
The "8 glasses a day" rule has no evidence behind it, and the real guidance is stranger than the myth. Here is what the reference intakes actually say.
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Health
The Signs of Mild Dehydration That Hold Up, and the Ones That Do Not
Plenty of symptoms get blamed on dehydration. Only some of them survive contact with the research. Here is the honest version.
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Comparison
Smart Water Bottle vs. Clip-On Tracker: Which Actually Gets Used?
Both measure what you drink. The difference is what happens on the days you reach for a different bottle.
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