Which robot vacuum is best for quiet nighttime use?

Roborock, especially the S7 and Q5 series, is the consensus pick for being noticeably quieter than others. Roomba models tend to be louder at 65–70 dB because they prioritize suction. The Roborock S7 MaxV is one of the quietest at around 55 dB on standard mode. For best results, run it on quiet or standard mode and schedule it during deep sleep.