Day 12: Something about sleeping habits
Finarfin hated sleeping the entire time his children were in Middle-earth. He had never had such as a passing moment in a dream that included Middle-earth before his kin had left, but now he was plagued with constant nightmares of events that happened or could happen, usually involving his children's deaths. He would try to stay awake as much as possible, but sleep eventually was inevitable, and he would often toss and turn all night. Eärwen could offer him little comfort, especially since he was careful to close his mind at night so that she couldn't read his thoughts and share the horrors of his dreams.
Finrod-
Finrod was the worst of the five. Finarfin had constant nightmares of Finrod dying in countless different ways, and ironically none of the way in which he actually did die. He saw swords slay him, men or elves turn against him, riding accidents, storms, spies of Morgoth, a thousand things Finrod managed to survive that Finarfin feared he wouldn't. After Finrod was slain in Tol-in-Gaurhoth, Finarfin and Eärwen had no idea until news was brought to them from others.
Orodreth-
Finarfin saw Orodreth less often than Finrod, and he never saw his second son in life threatening situations until, though Finarfin didn't know it, Túrin was born. A few years after these dreams started, they started featuring Túrin (though Finarfin never knew his name,) a mortal who came to Nargothrond and brought about its ruin.
Aegnor and Angrod-
The two were usually together, though not always. He saw every battle or potential minor danger, but it wasn't until the night of their deaths that he saw what would happen. That night he watched them die Finarfin knew it was real, and that it would happen soon. He had awoken, screaming, in Eärwen's arms while she sobbed. Having failed in hiding this dream from her she had seen it, too.
Artanis-
Finarfin never once had a dream about Galadriel. He could never see anything of her fate, good or bad, and this made him worry about his only daughter more even than the rest. He felt less connected to her now. He worried that somehow her fate would be worse than the others and that for that reason something hid it from him.
A short time after the First Age ended his dreams of his sons had faded completely, but he still never dreamt of Galadriel. It wasn't until the Fourth Age was begun and Galadriel sailed home that Finarfin began to stop worrying about her fate, though once she had returned he never let on to her how deep his fears had been.