[talky]

degree is for temp
ltr is for vol
so as cm ids for length

i suppose u cant measured tiredm=]ness w a  named unit 
u only just can feel it n aware of it

the most tiredness moment is what when drop on the bed n sleep like a dead dog n when wake up feels that u hv just slept for a minute but in fact u are too tired to dream to hv a v  deep sleep