A temperature setting on the furnace thermostat of 65 F to 75 F is a good temperature to keep your house in the winter depending on how cold you feel.
At night you can save money on your heating bill by turning the thermostat down to 60 F or 55 F which will keep your house warm enough to prevent frozen pipes and keep you warm enough when under blankets.
I'll turn my thermostat down to 55 F and I feel toasty warm under my blankets and then turn the heat back up to 70 F in the morning and then once the house gets to 70 F I turn it back down to 65 F for awhile.
I like to alternate between the temperature settings depending on how cold it is outside.