Another plug-in option that will work for some people is the echo flex device with its plug-in nightlight attachment. Integration would be through Alexa routines.
The echo flex itself is a plug-in device with Alexa functionality so you can speak to it. It usually costs around $25. The nightlight is a $15 add-on. It has 16 colors and you can control it with an Alexa routine.
You can buy the two together in a bundle but as of today you only save two cents.
So this is less expensive than the homeseer Z wave device with more functionality in terms of echo but less functionality as far as sensors go.