R.K.
Hi H.. According to Dr. Sears from 6 months to age 2 they need 12-14 hours total sleep but from 2 years to age 5 they need 10-12. She's almost 2 so it could be time to cut the afternoon nap. You will have a grumpy toddler on your hands for a few days while she gets used to it but maybe once its cut out she'll sleep an extra hour at night. If you still want to give her a nap I suggest you put her down for one much earlier then what you are since its taking her hours to fall asleep and if by 2 or 3 she hasn't taken one I'd keep her up.