Can I take my normal serving of CBD in the evening and then take a serving of Sleep CBN oil before bed?

Yes, however, our Sleep CBN oil is a 1:1 ratio of CBD and CBN (Ex: each full dropper of our Regular Strength CBN has 10mg CBN and 10mg CBD, while our Extra Strength has 20mg CBN and 20mg CBD) so you may want to reduce your evening CBD serving as appropriate.