Teething & Sleeping

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Has anyone's LO started waking up in the night once they started teething? My baby girl was the best sleeper ever, I don't think we've even been up once overnight since she was 5 weeks old, and now that she has a tooth popping through, she's waking a few times every night. She just needs soothed back to sleep but it can take a while to do and sometimes I give in and feed her until she falls back asleep (which I know I shouldn't be doing). Any helpful hints into this stage? And how long is it going to last?! She's 6.5 months.