Levoit 2.5L Top-Fill Humidifier
Fills from the top, so you're not carrying a sloshing tank to the sink and back upside down. Runs 25 hours on low at 28 decibels — quieter than a whisper, which matters six feet from a crib.

When you do not want to think about refilling a tank in the middle of the night, this one holds enough water to run up to 60 hours before it needs attention. The top-fill design means you can top it off without hauling the tank to a sink.
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Nurseries or bedrooms where you want fewer overnight refills
It is a large tank at 6L, so once full it is heavier to move than smaller humidifiers, but that same size is what gives it the long runtime.
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