SLeep-RELateD LanguAGe

Vocabulary and phrase:

• forty winks
• lethargic
• sleep deprivation
• getting their head's down
• hit the sack 
• mood swings
• turn in
• tetchy
• grumpy
• affluent 
• tempt
• siesta
• take account of sth / take sth into account
• pupil
• run on empty
• doze / doze off