The Night Knight — C.H. Clepitt

It's hard to sleep when you're afraid to close your eyes... Bella is playing catch up. Ten years in a coma has left her feeling out of every loop. When a mysterious knight begins to invade her dreams, she finds herself pulled into a war which is threatening to spill out of her dreams and into reality. The second in the Guild of Dream Warriors series hits the ground running, and doesn't pause for breath until the end.