She Won't Sleep, She Won't Let Me Sleep. - Family

My elder sister doesn't sleep, she goes to work by 8am but wakes up by 3 am (we are not in lagos dat she has to wake up early to beat traffic) the problem is when she is awake, every other person in the house must wake up willingly or forcefully. Not that we have a lot of work to do in the house but she just want you to be busy @ all times. She sleep late @ night and wake up early. Today she woke up by 2am and her noise won't let me sleep. I finally got up by 4am (come and see my sister's face). I was forced to start moving around looking for smtin to do. I'm not actually a fat gal but now, I'm becoming skinny due to lack of rest. When I complain, she says I'm too lazy. What should I do?