I feel for you skysue! Bad naptime equals a bad day! I say teething or not, don't let her get away with not sleeping. Go in and lay her down and tell her it's sleeping time and then leave. I would just keep repeating this every ten minutes or so until she gets the message that you aren't getting her up. Next time my 9 month non-sleeper comes I am going to do the same...now that his playpen will be in a space where he won't wake others up.