Matching Pairs Vocabulary sleeping habitsOnline version Match the expression with the correct definition by Pedro Torres Hernandez 1 toss and turn 2 feel drowsy 3 be wide awake 4 sleep like a log 5 to take a power nap 6 drift off 7 be fast asleep 8 nod off 9 be sound sleep sleeping deeply to sleep very soundly , so well that noises don't even wake you up. sleepy and having low energy Someone who is fully awake and unable to sleep to move about and turn over in bed because one is unable to sleep tossing and turning all night sleeping in a way that makes it difficult to wake you you gradually fall asleep to take a brief sleep during the day in order to improve one's alertness and ability to work efficiently throughout the remainder of the day fall asleep unintentionally.