My 1 year old sleeps/naps between 2-4 hours every afternoon. Kung regular ang sleeping hours ng baby mo, it's ok for them to nap kahit mga 2-3 hours pag hapon. Pero they still have to complete the sleeping hours for the whole day in total.
Sa hapon pinaka matagl ng nap ng anak ko ang 2 hours. Pinaka mabilis naman is kulang kulang 30 minutes.