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. © 2015 Farlex, Inc, all rights reserved.

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 © Farlex 2017
See also: