Pack n Play sheet vs. Bassinet sheet

[babymama]

The crib mattresses at DS's childcare center are weird sizes - a regular crib sheet is way too big and a pack n play sheet is a little on the small size. Would a bassinet sheet be somewhere in the middle? I'm worried about having loose bedding possibly sliding around while DS sleeps (currently using a crib sheet). Another mom uses a PnP sheet that seems to just barely fit around the mattress. Saw a Carter's sheet at Ross called a "portable crib sheet" - is that the same as a pack n play sheet?
Thanks,
Mama to Santiago, born 11/16/03

[daisymommy]

Most day care centers use portable cribs. You need to buy portable crib sheets (bigger than Pack and Plays and bassinets). The softest ones are knit sheets by Carters (they feel like the softest of tee shirts!). But other brands of portable crib sheets will fit too (I think Gerber makes knit ones as well).