Inverter AC for 120~145 Sq Ft Bedroom

I too sleep at 29 with eco mode 60%

28 - 29 is more comfortable

one of my uncle couldnt believe that ac can cool even in 28 degree .. i personally saw his samsung inverter ac …his ac cools only in 16 - 20 .. and gets bills of 6000 for heavy night use eventhough its inverter… sharp gets only extra 600 bill for daily 14hour usage.

I too want to to know the best settings for sharp … 29 plus eco 60% best?