1) Fright not by night 2) Light fright 3) Relative of a bad dream 4) Troubling reverie 5) Wakeful fright 6) Waking bad dream 
• (n.) A kind of incubus which occurs during wakefulness, attended by the peculiar pressure on the chest which characterizes nightmare.
Day'mare` (dā'mâr`) noun [ Day + mare incubus.] (Medicine) A kind of incubus which occurs during wakefulness, attended by the peculiar pressure on the chest which characterizes nightmare. Dunglison.