Taking care of long hair requires a lot of work and patience! So, why would we want to damage our hair with heat just to curl it?
Heat can be very destructive to your gorgeous mane. Heat damages hair by removing water and moisture from the hair shaft. Using curling irons and flat irons on damp hair can literally boil the moisture off the hair causing the cuticle to bubble and buckle. Thermal protectors on the hair can help but avoiding heat is the best way to protect your locks.
Give it a try... waking up with wavy hair full of body and without the damage is pretty awesome!