Heartburn

Currently 30 weeks and 5 days and the past 24 hours I have experienced the WORST heartburn I've ever experienced. Not only was it bad but it seems to not want to go away. I've gotten it very very rarely throughout my entire pregnancy but only for seconds where I was woken up every hour if not every half hour due to it lastnight and am still struggling with it now. Any at home remedies to help? Or any suggestions??