(The wedge props your head. Your stomach needs your side.)
Heartburn every night, a wedge pillow you slide off, a bloated stomach by dinner. Here's what gastroenterologists mean by 'sleep on your left side' and why nobody manages to do it for eight hours.
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TLDR: Your stomach sits on the left, so left-side sleeping keeps acid where it belongs and helps digestion. You roll off your left side 20 times a night. The Modular Pillow holds you there, with head and torso elevated in the same system. 👇
Your stomach curves to the left and the valve at the top sits higher when you lie on your left side. Lie on your right or your back and acid pools against that valve all night. Gastroenterologists have been saying 'sleep on your left' for decades because the anatomy is that simple. The hard part is staying there.
Adults change position 20 to 30 times a night. You fall asleep on your left like you were told, and you wake up on your back with heartburn, because nothing held you. Advice you can't follow while unconscious isn't advice. A position has to be built and held.
Wedges elevate your head, which helps. They also have no side support, so you roll onto your back on the wedge, and by 3am you've slid down it and your neck is bent at an angle that gives you a new problem. You've been treating the elevation and ignoring the side.
Stay on your left side tonight.
Try it risk-free for 120 nightsHSA/FSA eligible · 120-night at-home trial · Doctor-designed
The Modular Pillow holds your torso in a supported ~45° tilt against a side rail, so rolling onto your back means pushing through a rail. The full-leg modules keep your hips from twisting you over. You stay on your left because the system makes your left the easiest place to be.
The modules can be built up so your head and upper torso sit higher while your neck stays in line, instead of a single wedge that bends you at the neck. You get the elevation the wedge promised, on your side, without waking up at the bottom of it.
Gravity moves things through your gut from left to right, and lying on your left side lets it. People who sleep on their left report less morning bloat and fewer 'six months pregnant by dinner' days. Same position, second benefit, zero effort once you're held in it.
Elevated, on your side, without the slide.
See how the system holds you120-night risk-free at-home trial · HSA/FSA eligible
Reflux sleepers end up with a stiff neck from the wedge and a sore hip from the side. The system supports head, shoulder, arm, hips and knees together, so fixing the stomach doesn't cost you the rest of your body.
Designed by Dr. Aaron Fu, DPT, for people who need a specific position and can't hold it. Head, torso, arm, hips, knees and ankles supported together, adjustable to you, and still in place at 4am.
Wedge. Bed risers. Body pillow behind your back. Three pillows under your head. The pile costs more than one engineered system and is on the floor by 3am. One connected setup replaces all of it.
Reflux has good weeks and bad ones, so you get 120 nights at home to judge it properly. It's HSA/FSA eligible, and it's a positioning system, not a medication, so it works alongside whatever your doctor has you on.
Your stomach needs your side. This keeps you there.
Check AvailabilityHSA/FSA eligible · 120-night risk-free at-home trial · Doctor-designed by Dr. Aaron Fu, DPT