Are warm/amber night lights actually better for sleep?

Sleep researchers generally favor warmer color temperatures (roughly 2700K and below) or amber/red light in the hours before bed, since cooler blue-rich light suppresses melatonin more aggressively. Most of the picks here default to a warm 2700K–3000K glow; the Casper Glow and Luminara lean even warmer, while the Echo Glow and Olight Sphere can shift across the full color range so you can dial them down to amber at night.