Thanks to Brad Carlin for the data
+++++++++++++++++++++++++++++++++++

The binary data is defined as:

  Set Y=1 if sleep state = 4 or 5; otherwise set Y=0

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Details of the data can be found in Stoffer et al, 1988, JASA pp 954-963.  
A group 2 infant (mom at least 3 drink avg per week) is selected. 

col1 = time (minute) 
col2 = sleep state (dichotomized as Y=1 if sleep state = 4 or 5; otherwise set Y=0)
col3 = number of body movements per minute
col4 = col3 - number of move when sucking per minute

Moreover,
col 2:  1 = quiet sleep -- trace alternant
        2 = quiet sleep -- high voltage
        3 = indeterminate sleep
        4 = active sleep -- low voltage
        5 = active sleep -- mixed
        6 = awake

(active = REM)