Blue light (like is found in whiter spectrum light bulbs), especially strong blue light triggers your circadian rythmn to think that its still daytime. This would effect you your kids and you's sleep.
I have struggled with insomnia, until recently i started using just one low watt lamp at night, installed f-lux on my computer (dims and warms your screen), and just a few tea candles. I have been sleeping a fair bit better, more regularly. First night I tried it, I yawned heaps, lol. The low lighting definately makes you read ready to sleep. I am going to get a bunch of flameless electronic candles to make the whole thing more like a campfire, and even more relaxing and amber coloured :)
I also put on some nature sounds, like birdsong in the later evening. Trying to emulate some paleo paleo-style sleepytimes, and it very works well with the low light.
You can also buy bulbs specifically via the net that have no blue in them too. Ive never tried them, but thats something I am interested in.
All just ideas, but its working for me, it might help you too maybe. It does take a bit of adjusting to get used to less light to work with, you have and if your busy, thats a balancing act, but having to go a little slower but thats generally is probably a good thing.
I also second these two ideas: batch cooking
And co-sleeping. Mammals generally co-sleep. It makes us more at ease, warmer at night and builds bonding.
Modern social nonsense prevents us from doing it so easily when we reach a certain age, but I think families could try to keep at it while there kids are young and its still allowed socially. That may well make your kids sleep better, and be more at ease, perhaps even more adjusted mentally as well as make waking for breastfeeding easier. Of course being a parent is tuff especially with no "tribal support", so its up to you entirely how you choose to do things..