Determine Why Lights Turn on Intermittently

Hi Folks,
Quick question I hope…
I use (and love) Hue lights around my place.
However over the last few weeks I have a number of hue lights which are turning on intermittently over night.
I can’t for the life of me determine what is triggering them to do so.
When I go tthrough the logbook I see the following:

 Backlampshade turned on
3:09:36 AM - 5 hours ago

This is the first one, then the rest follow:

EntertainmentAmbienceStrip turned on by Backlampshade
3:09:37 AM - 5 hours ago
EntertainmentBackStrip turned on by Backlampshade
3:09:37 AM - 5 hours ago
EntertainmentAmbienceStrip2 turned on by Backlampshade
3:09:37 AM - 5 hours ago

when I click the links it gives me more history for each entity…
How can I determine what triggered this? It’s a couple of other lights in other rooms too, and at different times too…

Any hints greatly appreciated.

I ended up finding an automation which was misbehaving.
All sorted.
Cheerio,