Baby having trouble sleeping

Seth
I've had an issue with my teething 6 MO recently. My wife and I got a new bassinet that he has been sleeping in for the most part. He used to sleep mostly through the night with little interruption but recently he'll only sleep 1-2 hrs then just cry and thrash in his sleep, thus keeping mom and dad awake. I don't know if this is just him being uncomfortable or if this could be related to his teething. Anybody have similar issues with their kids and if so, anything you can recommend to get kiddo to sleep better?