We have been using a Summer brand baby monitor that both lights up and has a sound option as well! We have a rather large home. If I'm downstairs while she is napping, I can hear her. Also it's peace of mind because I can even hear her if she sighs or yawns or even moves around at all. The sound quality is terrific no matter where I go in the house or even out on the back deck! For about $50, I like having the option of it's use.
Melissa