Please explain why is it so enjoyable to sleep?

Enjoy your Sleep: Rem sleep is when we dream during sleep. Non-rem sleep is when we are not dreaming. Rem sleep blows of the steam of the day, like a pressure cooker releasing. Non-rem sleep focuses more on repairing the physical body. Nature invites us to this state so emotional and physical repairs can be made, thus it is enjoyable. Glad you enjoy it.

Sleep can be when: we avoid the stressors of everyday life. We may have pleasant dreams. it is a time to reflect. we may feel cozy warm and comfortanbl in our beds.