Table 2 (abstract A13).

Sleep

	Control	High-Protein
Sleep duration (hours)	6.70±0.65	6.47±0.76
Onset latency (minutes)	12.2±15.0	15.0±13.0
Sleep efficiency (percent)	85.1±4.1	84.5±3.5
WASO (minutes)	48.3±20.4	44.1±11.1
Number of awakenings	24.1±5.4	23.6±6.4

Data are expressed as the mean±SD. Legend: WASO – wake time after sleep onset (i.e., amount of time a person spends awake after first falling asleep). Onset latency – how long it takes to fall asleep. Sleep efficiency – percentage of time you are actually sleeping after you fall asleep. Number of awakenings – number of times you wake up after falling asleep.