My mom says she just took a "box of sleeping pills"?

It's 11:21pm and I have 2 finals tomorrow and need to study or sleep. About 20 minutes ago my brother came into my room and told me our mom said she took "a box of sleeping pills." Like approx 20-30. But now we ask her again and she says she was "flurry" and only took 3. I know she's the type to exagerate and is really a drama queen... don't know what to do. Don't want to call 911 cos I won't get sleep or studying. Dad's divorced. Grandparents on mom's side are ESL and I can't explain to them in chinese. What should I do? :S