core/homeassistant/components/eight_sleep/services.yaml

heat_set:
  description: Set heating level for eight sleep.
  fields:
    duration: {description: Duration to heat at the target level in seconds., example: 3600}
    entity_id: {description: Entity id of the bed state to adjust., example: sensor.eight_left_bed_state}
    target: {description: Target heating level from 0-100., example: 35}