The Tanita sleep scan mat monitors your sleep patterns. Monitoring your sleep patterns, it would give you a score that’ll basically correct you fitful slumber. A slim pad, which slips under the mattress, the Tanita records well just about anything, including heart rate, breath, and even motion. It records everything up onto an SD card and analyzes the statistics via an accompanying computer program. Do you need this? No. Do you want this? Probably, especially if you have nightmares.