If you started taking a GLP-1 medication and noticed heartburn creeping in that you never dealt with before, you're not imagining it. It's not a coincidence, and you're far from the only one dealing with it.
GLP-1 drugs like Ozempic, Wegovy, Mounjaro, and Zepbound have become incredibly popular for weight loss and blood sugar control, and for good reason. They work by slowing down how quickly your stomach empties. That's actually part of why they're so effective. Food sticks around longer, you feel full sooner, and blood sugar spikes get smoothed out.
But that same mechanism has a downside. When food sits in your stomach longer than usual, pressure builds up. Eventually that pressure has to go somewhere, and often it pushes up against your lower esophageal sphincter, which is the valve that's supposed to keep stomach acid where it belongs. When that valve gets overwhelmed, acid creeps back up into your esophagus. That's reflux.
Why It Tends to Get Worse at Night
This is the part a lot of people don't expect. Reflux from delayed gastric emptying is often mild or barely noticeable during the day, when you're upright and gravity is doing you a favor. Stomach contents naturally stay lower, and any acid that does escape has an easier time draining back down.
Lie flat at night, though, and that advantage disappears. Whatever is still sitting in your stomach from dinner now has a level playing field to work with. There's no gravity pulling acid back down, so it lingers near the esophagus, and for a lot of GLP-1 users, that's exactly when symptoms show up. Waking up with a burning throat, a sour taste, or a cough that wasn't there before.
What Actually Helps
The good news is that this is a mechanical problem, and mechanical problems often have mechanical solutions. A few things tend to make a real difference for people managing reflux while on a GLP-1:
Eating earlier and lighter in the evening. Giving your stomach more time to empty before you lie down reduces the amount of pressure built up overnight. Since GLP-1s already slow that process, cutting back on late, heavy meals gives your body a head start.
Elevating your upper body while you sleep. This is one of the most consistently recommended approaches for nighttime reflux, GLP-1 related or not. Keeping your head and chest raised above your stomach uses gravity to keep acid where it belongs instead of letting it travel upward while you sleep. Doctors have recommended sleeping at an incline for reflux for years, and it's one of the few interventions that addresses the actual mechanics of the problem rather than just masking symptoms.
Talking to your prescriber. Dosage and titration schedule can play a role in how pronounced GI side effects are. Sometimes a slower ramp-up or a dosage adjustment can ease reflux without giving up the benefits of the medication.
Why a Wedge Pillow Makes Sense Here
Stacking regular pillows sounds like a reasonable fix until you've actually tried sleeping on them for a full night. They shift, they flatten, and by 3 a.m. you're usually back to lying flat without realizing it.
A wedge pillow solves that by keeping a steady, consistent incline all night instead of one that collapses the moment you move. Ours at Travelwedge is self-inflating, so it holds its shape and elevation without needing to be re-fluffed or repositioned, and it's designed specifically with this kind of nighttime elevation in mind rather than as a generic pillow substitute.
If your reflux started (or got noticeably worse) after starting a GLP-1, it's worth trying elevation before assuming you just have to live with it. It won't change how the medication works in your stomach, but it can make a real difference in whether that pressure ends up traveling upward while you sleep.
If you're dealing with this, talk to your doctor about your options, and consider whether your sleep setup might be working against you without you realizing it.