Should I run a humidifier all night?

Yes, if your bedroom is dry. Set a target humidity of 40-50% and let the auto-mode maintain it. Machines without auto-mode should be set to low to avoid over-humidifying.

How close should a humidifier be to my bed?

3-6 feet from your bed is ideal. Too close can make bedding damp. Elevated placement (on a nightstand or dresser) distributes mist more evenly than floor placement.

Best Cool Mist Humidifiers for Bedrooms 2026