Lifestyle when we have 2 kids

Serene

I have a 9 month old and now that.im thinking about starting to try for a second baby im just worried about what things will change again now that i feel i had just started to settle. How do people manage 2 kids with 2 different sleep schedules? Forget the eating and the playing and all that good stuff, but my firat baby is a light sleeper and im not sure how to do this! Do toddlers become less of light sleepers as they grow out of "baby" phase?