noun, noun or participle which takes 'suru'
long bath; staying in the bath for a long time
Refers to the act of taking a long bath, often with a nuance of lingering or soaking for an extended period. Can be used as a noun or with する to mean 'to take a long bath'.
See also: 長湯
長風呂は肌に良くないと言われる。
They say long baths are not good for your skin.
昨日
I was so tired yesterday that I ended up taking a long bath.