WordNet sense 1 (not hurried or forced):

leisurely

WordNet sense 2 (not burdensome or demanding; borne or done easily and without hardship):

cushy, soft

WordNet sense 3 (posing no difficulty; requiring little effort):

easy

WordNet sense 4 (not demanding; requiring little if any patience or effort or skill):

undemanding

WordNet sense 5 (living without undue worry; taking life easy):

calm, placid

WordNet sense 6 (satisfied or showing satisfaction with things as they are):

content, contented, content