Bonjour Sleep Proxy
I can imagine a lot of people have chosen Eero to replace Apple AirPort Extreme units, this is likely to increase now that apparently Apple are discontinuing their Airport base stations.
One less well known feature of the AirPort base stations is that they include an automatic Bonjour Sleep Proxy. See https://support.apple.com/en-gb/HT201960
Perhaps Eero could also take over this role as well.