If a Google Nest speaker is too loud at bedtime, identify whether the sound is the Assistant replying, media playing, or an alarm. Night mode is not a single cap for all three.
Run a short test on one device
Google documents a Night mode schedule and a maximum Assistant volume for that window. Select the intended device and confirm the active days and times. Ask a simple question, then play a short familiar clip at a comfortable level. Write down which sound still needs adjusting rather than buying another speaker to solve a settings problem.
Check the schedule before touching other rooms
Repeat the same spoken request before and during the configured window. If the reply changes but music is still loud, adjust the media volume separately. Treat alarms and timers as a separate test; do not assume Do Not Disturb will silence them. Make one room work before applying the configuration elsewhere.
See the manufacturer’s guidance for current requirements. Related: google home default music speaker wrong room.
