A twisted spine disrupts sleep. Back sleeping may keep your spine neutral, per a 2020 study showing 30% better alignment. John, 58, tried it, his back feeling straighter. The mattress’s firm embrace felt grounding. Ready for better posture? Wait—the next one’s surprising.

5. Enhances Breathing Quality
Stomach sleeping restricts lungs. Side sleeping may open airways, per a 2019 study noting 25% improved oxygen flow. Maria breathed easier, her sleep deeper. The cool pillow against her cheek was soothing. Want better rest? The next benefit will surprise you.