Inside Nectar's Pressure Relief Pillow: Foam Density and Firmness Tested
Dense foam cushions well, but it notoriously retains body heat. Viscoelastic memory foam functions by reacting to body warmth, softening its cell walls to mirror the sleeper's contours. Left unchecked, that trapped heat turns dense foam into a heat sink, interrupting deep REM stages. Nectar counters this thermal buildup by encasing the core within a breathable, cooling Tencel cover.
Tencel, derived from sustainably harvested wood pulp, carries a naturally hydrophilic fiber structure that absorbs moisture roughly 50% more efficiently than cotton. In thermal imaging evaluations, the outer layer kept surface temperatures near 68°F to 72°F during initial sleep onset. The shredded internal layout also aids breathability. Solid memory foam blocks air circulation, whereas shredded foam fragments shift freely, allowing warm air to vent outward during position changes.
