The term 'READY TO HIT THE HAY' is a colloquial phrase used to describe someone who is TIRED and ready to go to bed. This phrase can be broken down into three crossword solutions: TIRED (5 letters), BEAT (4 letters), and WEARY (5 letters). TIRED is an adjective used to describe someone who is exhausted and has no energy. BEAT is another adjective used to describe someone who is very TIRED and has no energy. Lastly, WEARY is an adjective used to describe someone who is fatigued and has no energy. All three words are synonyms for the phrase 'READY TO HIT THE HAY' and can be used to describe someone who is exhausted and ready to go to bed.