If you’ve browsed modern adjustable beds, you’ve probably seen the term “Zero Gravity Sleep Position.” But what exactly does it mean — and why do so many people say it’s life-changing for comfort, back pain, and better sleep?

In this guide, we’ll break down what zero gravity really is, the science behind it, and how you can easily set it up on your adjustable base for the best rest of your life.

What Is the Zero Gravity Sleep Position?

The Zero Gravity position was originally developed by NASA to help astronauts reduce pressure on their bodies during launch.
When applied to sleep, it means positioning your body so your head and legs are slightly elevated, distributing your weight evenly and taking pressure off your spine.

In this position:

• Your head is raised about 20–30°

• Your knees are elevated about 25–35°

This creates a gentle “V” shape that supports your body’s natural curvature and allows blood to flow more freely — reducing stress on your heart, back, and joints.

The Science: Why Zero Gravity Helps You Sleep Better

Studies and sleep specialists agree that slight elevation of the upper and lower body can dramatically improve rest quality. Here’s why:

🩺 1. Reduces Back Pain

By keeping your spine in a neutral position, the zero gravity angle helps relieve tension in your lower back and lumbar area. It’s especially beneficial for those with herniated discs, sciatica, or chronic stiffness.

😴 2. Decreases Snoring & Sleep Apnea

Elevating your head helps open airways and reduces soft tissue collapse — a common cause of snoring and mild obstructive sleep apnea. You’ll breathe easier and sleep more soundly.

💧 3. Helps with Acid Reflux (GERD)

Raising your upper body keeps stomach acid where it belongs — in your stomach — reducing nighttime reflux and heartburn symptoms.

💓 4. Improves Circulation & Reduces Swelling

By slightly lifting your legs, zero gravity positioning enhances blood flow and helps reduce swelling in your feet and legs — perfect for anyone who stands all day or experiences poor circulation.

🧘 5. Promotes Relaxation & Stress Relief

The feeling of “weightlessness” eases muscle tension and calms your nervous system — making it easier to fall asleep faster and stay asleep longer.

How to Set the Zero Gravity Position on Your Adjustable Bed

Almost every modern adjustable base has a Zero Gravity preset button — including brands like Serta®, Tempur-Pedic®, Reverie®, and Leggett & Platt®.

If your base doesn’t have one, here’s how to manually adjust it:

1. Raise the Head Section about 20–30° (roughly the height of a thick pillow).

2. Lift the Legs until your knees are slightly bent and elevated above your heart — around 25–35°.

3. Fine-tune the angle until you feel your weight evenly distributed and your lower back pressure released.

💡 Pro Tip: For reflux or mild sleep apnea, increase the head elevation slightly beyond 30° to maintain airway alignment.

Can Side Sleepers Use Zero Gravity?

Yes — but you’ll need to adjust it slightly.
For side sleepers:

• Keep your upper body incline shallower (10–15°)

• Use a supportive pillow to keep your neck aligned

• Raise knees minimally (10–20°) to reduce hip pressure

This hybrid setup delivers much of the same spinal relief while maintaining side-sleep comfort.

Best Adjustable Bases for Zero Gravity Sleep

While nearly any adjustable base can mimic zero gravity, some models offer smoother articulation and advanced presets.

🛏️ Top Picks:

• Serta® baselogic™ Gold Adjustable Base – smart presets and whisper-quiet motors

• Ergo-Pedic iTilt Bed – intuitive remote with precision angle control

• Tempur-Pedic Ergo Smart Base – automatic snore response and sleep tracking

• Reverie 9T Base – independent head/foot adjustment with memory presets

When Zero Gravity Might Not Be Ideal

While generally safe, zero gravity may not suit everyone:

• Late pregnancy: consult your doctor before elevating legs

• Post-surgery recovery: follow physician instructions

• Certain spine conditions: some may require flat or alternative postures

Always check with your healthcare provider if you have medical concerns.

Common Problems & Quick Fixes

Ready to Try It Yourself?

Experience true weightless comfort every night.
Explore our full range of adjustable bases and smart mattresses designed to deliver NASA-inspired rest.

👉 Shop Adjustable Bases at BedPlanet.com

FAQ

What angle is zero gravity on an adjustable bed?
Typically, your head should be elevated 20–30° and knees 25–35°, forming a gentle V shape.

Is zero gravity good for back pain?
Yes — it decompresses the spine and relieves pressure points in the lower back.

Does zero gravity help with snoring?
Absolutely. The slight head elevation opens airways and reduces snoring episodes.

Can I use zero gravity if I have acid reflux?
Yes — it’s one of the most effective positions for reducing nighttime reflux.

Can I use zero gravity every night?
Yes. In fact, many people find they sleep more deeply and wake up with less stiffness and soreness.