  The Day Reflection Theorem gives conditions under which a reflective
subcategory of a closed monoidal category can be equipped with a closed
monoidal structure in such a way that the reflection adjunction becomes a
monoidal adjunction. We adapt this result to skew monoidal categories. The
beauty of this variant is further evidence that the direction choices involved
in the skew notion are important for organizing, and adding depth to, certain
mathematical phenomena. We also provide conditions under which a skew monoidal
structure can be lifted to the category of Eilenberg-Moore algebras for a
comonad.
