nice and peaceful, comfortable, warm, etc.

nice and (something)

Very something. Used to emphasize how nice something is because of the particular quality named after "and." I love your new house! It's nice and bright inside! Ah, this lemonade is nice and cold—just the thing for such a hot day.
See also: and, nice
Farlex Dictionary of Idioms.

ˌnice and ˈpeaceful, ˈcomfortable, ˈwarm, etc.

pleasantly peaceful, etc: Sit by the fire. It’s nice and warm there. Drink your coffee while it’s nice and hot.
See also: and, nice
Farlex Partner Idioms Dictionary
See also:
  • nice and (something)
  • nice and some quality
  • peaceful
  • (it's) nice to see you, too
  • (it's) nice to be here
  • (it's) nice to have you (here)
  • it was nice to see you
  • (it's) nice to see you
  • nice to see you
  • nice place (you have here)