It is very important for cows to get their daily feed requirements, but studies have shown that a cow will sacrifice eating time in exchange for resting time. Summarizing data from several studies found that cows will sacrifice one minute of eating time for three and a half minutes of rest. If cows are allowed to sleep, eat and walk, their internal clocks will provide them with enough time for each during the day. Data loggers are an easy way for producers to track how much time a cow spends standing and laying.