Looking back on Day 4, due to Culann being hunted, 3 of the 4 main candidates (the_hdk, witch agatha, and culann) has turned up to be villagers, this leaves us to answer one question. Is Caillean also a villager and all the four main candidates were villagers run up by wolves or is she a baddie that got saved (whether by the village sympathetic to her technology issues or by a hypothetical pack)?
On the case of Sleepyhead, his Day 3 vote on Jeray makes me believe that he cannot be part of the red pack. There are several assumptions we would have to make to take his Day 1 vote on Chefjones as clearing. First, we have to assume he hasn't been alibi voting like crazy (this can also hypothetically be extended to Jeray) and that Chefjones' pack did not throw him under the bus on Day 1. Second, we have to assume that he was not the curse hit. And third, we have to assume he's telling the truth about his psychic trait claim.
The result I got from my psychic trait leads me to believe Sleepyhead's claim (the math lines up). While he could have guessed number of starting baddies by making an assumption of a standard setup, I don't know if the baddies would want that information given to the village so early in the game. He also voted for Grimlock the sorcerer on Day 2, which, unless he alibi voting like crazy (as I have said) indicates he's either a villager or a baddie who wasn't in contact with the sorcerer (and remember Grimlock was killed AFTER Sleepyhead revealed the result of his psychic trait).
If we accept his psychic trait claim, I am inclined to believe he cannot be the cursed villager. I feel giving a cursed villager traits would be a little too swingy for the baddies against the village (i.e. they not only gain an additional member but an ability too). I would guess that a vanilla villager would be the most likely candidate for the cursed hit. But that's just an assumption.
Lastly, on the alibi vote assumption, while I feel like Sleepyhead would be one to try to alibi vote, all three potential alibi votes (Chefjones, Grimlock, and Jeray) lead to baddie deaths.
So I personally don't think Sleepyhead is a good candidate for today UNLESS we think any of the above assumptions that I have mentioned are false.