Does Bedroom Temperature actually make a difference, or is it overhyped?

Sleep onset and maintenance are physiologically coupled to a decline in core body temperature and a rise in distal (hand/foot) skin temperature, a mechanism laid out in detail across several reviews of sleep thermoregulation and linked to insomnia, restless legs syndrome, and other sleep disorders when disrupted. Weighing the data: Bedroom Temperature looks an early-stage, lower-priority area for now — the evidence is only emerging (38/100), and its estimated impact (30/100) is on the lower end too.