Three-dimensional support: the pillow fills the lumbar gap and provides strong lower back support, helping to hold the lumbar region for comfort. The elevated contour wraps the lumbar area to relax the surrounding muscles. All-night sleep aid: designed to assist sleep through the night and relieve chronic lumbar discomfort. Suitable for pregnant women who cannot lie flat, for back stiffness, and for postpartum or post-surgery lumbar curvature recovery. Full support: cross-section height 8 cm. Inner core is memory foam, offering a soft-to-moderate firmness that provides full lumbar support and a gentle, embracing feel. Memory foam design: memory foam core with scientifically partitioned zones for close fit and uniform pressure relief, reducing back pressure. Suitable for pregnant women and for any adult. Use scenarios: - In bed for nightly lumbar support to improve sleep quality. - During pregnancy or postnatal recovery to maintain lumbar alignment while resting. - Lounging on a sofa for extended reading or watching TV to relieve lumbar strain.