My 1 year old niece was trying to stand up and fell backwards she hit her head. she has a knot and she's playing and laughing but it's her bedtime and she's sleepy should i allow her to go to sleep and is there anything special i should watch for?

No knockout/no pbm: The trauma that knocks you out, even briefly, has produced a concussion.If the trauma wasn't enough to cause even brief loss of function is minor. A bump coming out, means he has a blood pocket under the scalp, but should do fine.Some will throw up once or seem dazed with a headache.I let them sleep/nap as normal, but observe them with a flashlight at night. Recurrent vomiting=get evaluated.