My 6 month old baby fell of my bed this morning around 9 should I let her sleep she's been awake for about 1 hour and half !?
Yes but observe
If she is acting normally, active and playful, let her sleep on her usual nap/ bed time but observe closely in the first 24-48 hours for increased sleepiness, irritability and/or any other symptoms like vomitting.
If you any of these developed take her to the pediatrician to be checked.