My wife and I sleep confidently when our baby is in her nursery and the Angel Care Baby Movement and Sound Monitor is turned on. The alarm sensitivity can be adjusted to reduce false alarms. After 20 seconds of no movement, the alarm is triggered both on the base and the portable monitor. The monitor can also pass along sound from the nursery. It is even set-up to trigger an alarm if the room gets too cold or too hot (settings are customizable). The video options on baby monitors seem a little overkill. The nursery is usually pretty dark, and we try to sleep in the evenings when our daughter is sleeping. We hear her fine in the middle of the night with the monitor when she needs us.