Sleeping problems

I have a good sleep at night but every morning I’ll wake up even more tired then before, I’ve started to randomly fall asleep mid conversation or when I’m with my daughter. She’s two years old and we’re usually in the lounge so I know if I pass out she’ll be on there with me, I usually wake up but then pass out again? Has anyone ever had this before? I keep getting told off by my family because they think it’s unsafe for my daughter as anything can happen but I’m a light sleeper so I’ll wake up no matter what, I’ve asked for help off my family to take her before I know I’ll pass out but they don’t usually help.