Answer:
I have four wings but cannot fly. I never laugh and never cry. On the same spot always found, toiling away with little sound.
Often held but never touched. Always wet but never rusts. Often bits but seldom bit. To use it well you must have wit.
My first is a body of water. My second is me. My third came before. My fourth before all three. My fifth sounds like my first. My sixth is in a lake. Put all six together to make an animal that will keep you awake.
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
What does a WW1 Trench, A Submarine and a Popular Phone App all have in common?
People take me on walks and I run and have fun. What am I?