Check this out. It might work. But some Community members report the timing never gets quite right. But since it’s not a dimmer, there’s a chance it will work.
Personally, I’d consider the mode toggle switch as a separate option from the light switch. You can put it anywhere in the house, including outside the baby’s room, and you’d have a little more flexibility. But different things work for different people.
And thanks for the kind words. I really don’t answer that many questions, but I’m particularly interested in two things: network protocols, and how specific devices process specific network protocols. So it’s just automatic for me to pay very close attention to the differences between different models, and to go ahead and read things like conformance statements that make most people’s eyes glaze over. And I have the advantage of using voice technology, which makes it very easy to respond in full paragraphs. 
You won’t find me on many of the threads about, for example, Sonos, irrigation systems, thermostats, or cameras, unless there’s a basic protocol aspect, and then it will just be one or two comments on that aspect. And I don’t join in any of the topics about specific app code, because following a block of groovy code with a text reader is almost impossible.
It just happens that I find the “will this device do that?” Conversations very interesting. 