I was just made aware of Krav Maga studio in my area that was conducting night and low level light training for their students. I guess the idea is that they sleep over or get up in the middle of the night like 3am and starting training. I noticed they were also outside in the night and in the freezing cold ( I live in Canada!) I thought this was pretty cool and I have always admired the way Krav Maga students train because from what I can tell they cover all aspects of self protection in good detail. I know this particular group does de-escalation, mutliple opponents, surprise attacks, weapon stuff! So I might jump in on a couple of class's to get some training ideas.
It seems to me the Krav Maga system has done a great job maintaining good self protection training and principles. At least the schools I've heard of and I thought I saw someone else on this forum mentioning how they like their approach andf thought it realistic. Anyway always willing to learn.