amending soil & replanting

I am amending the soil in my raised bed with daffodils and am about to replant them but have some questions. I live in zone VII and the soil had compressed but I always had about 2 inches of mulch on top. The bulbs had actually heaved to almost the top of the soil line when I removed them — do I now return them to close to the soil line or about double their height, as I have done in the past? Did the mulch make them feel as if that was dirt above them? Should I use that much mulch this fall or wait until after they bloom? Also, I have many small bulbs that don’t look large enough to bloom — is there a ‘best way’ to deal with those? Thanks for any advise! Kaki Charlottesville, VA