Parents that co-sleep, I have some questions about juggling 2 kids?

so my youngest child has decided she'd rather sleep in our bed than her cot (she's 8 months) and though I can get her to spend the first 3 hours in her cot she always ends up in the bed cuddling me, I don't really have a problem with this it just that I have an older child who has started having night terrors occasionally and its rather hard to get to him without waking her up when she's in the bed, same goes for morning, he often wakes around 6 and when I get up it wakes her up and she's still tired because she will sleep to about 7 if undisturbed. its also hard to get her to nap during the day as she wants to be cuddled then as well and doing that its impossible for me to do anything! I guess I'm just looking for some insight as to how I manage these issues, advice?