contentment, complacency, sloth/torpor Are these conditions mutually exclusive? Is complacency a form of sloth/torpor?

Sloth/torpor is a hindrance, but to say that one must not be satisfied seems contrary to the spirit of contentment and non-doing.

My guess is that sloth is inertia rooted in avoiding challenge, but not sure.

Please define sloth/torpor, comparing it to contentment.
'Complacency' would be a lack of urgency, thus a deficiency in wisdom.

'Sloth &amp; torpor' is a lack of energy (tiredness) or mental dullness ('sinking mind'), which can occur in concentration development &amp; thus a deficiency in optimum concentration technique.  

As for 'contentment' &amp; 'complacency', yes, they could occur together when a practitioner is content with a liberating yet lower level of attainment, such as stream-entry or jhana.