Tag: nrem

How Does Zeo Report Stage 4 Sleep?

published by Ryan@Zeo on Tue, 01/17/2012 – 18:10 User Question: I thought there were four stages of Non REM (NREM) sleep, but you only mention three: Stages 1 and 2 equal Zeo Light Sleep, and Stage 3 equals Zeo Deep Sleep. What happened to Stage 4?