Is red-eyed spelled with a hyphen?

No, "red-eyed" is not spelled with a hyphen. It is spelled as red-eyed.

Here's why:

* Compound adjectives are often hyphenated when they come before the noun they modify.

* However, there are exceptions to this rule. When the first part of the compound adjective is an adverb ending in "-ly," the hyphen is usually omitted. "Red" is not an adverb, so this rule doesn't apply.

Therefore, the correct spelling is red-eyed.