Related Clues:

• Highs? No, U-turn
• Weather map extremes
• Seeks restoration, maybe
• Cures for crankiness, perhaps
• Restful time-outs
• Storm-producing weather systems
• Bottom numbers on a graph
• Breathers for kindergarten teachers
• Toddlers' breaks
• Deals with jet lag, perhaps
• More than nods
• States of inactivity
• Sources of renewed energy
• Timeouts of a sort
• Nods off for a bit