Worst heart burn of my life

So I realise Im going to have to stop eating anything before bed. Last night I had a fruit smoothie about an hour and a half before bed. I woke up at 3 am with the worst heart burn ever, no bad taste in my mouth but burping and burning all over my chest. I finally took a prilosec and that helped a ton. Tums just arent helping as much as they used to, what works for everyone else?