bigger dogs tend to sleep for longer periods sleep 18–20 hours per day Sleeping time How many hows do dogs sleep each day National Sleep Association mat dogs According to Sleep.org dogs spend 50% of their time sleeping mat dogs source 12 and 14 hours 10 percent average﻿﻿ of 12-14 hours sleeping each day Sleeping Dogs source average of 12-14 sleep Sleep.org adult dog sleeps Sleep.org https://sleep.org/articles/how-much-do-dogs-sleep/ 12-14 hours per 24-hour cycle Sleep.org (źródło) Sleep.org what would be considered normal article National Sleep Foundation National Sleep Foundation, How Much Do Dogs Sleep How Many Hours Do Dogs Sleep Each Day? Sleep.org mat dogs rest sleeps for 18-20 hours every day Dogs normally sleep 12 to 14 hours per day. (źródło) older dogs require a bit more sleep than puppies