I do one bath a day at night and lotion or a baby message oil.
What I started to do to help my little one sleep better for naps is doing a smaller version of the night time routine.
Normally for night we do bath, new diaper, swaddle, read book, bottle bed
So for naps we do -----new diaper, swaddle, read book, bed.
It took some time and the first day it took forever to get him to sleep (1hour 20min) but we kept at it and now he naps GREAT
Just stick with it
sometimes he talks to himself for ever but he does fall asleep and now he sleeps 40min - 2 hours depending on the day. Hes a busy boy! Good Luck