Q about Bassinets

Jessa
Is the bassinet part of your typical pack'n'play acceptable to use for LO's first few months before they go into their nursery/crib?  It's not an issue of money, but more of space - so we were hoping to utilize that since we wanted the pack'n'play anyways... but part of me thinks it's probably not safe to do that.  Comments/suggestions welcomed.  Thanks!