Hello. Just thought I'd help-out for those of you who were wondering... Portable cribs are basically MINI cribs, which are SMALLER than a regular standard crib size.
So if this is a portable crib sheet.... it is NOT going to fit a regular standard size crib.
Hope this helps:) We have both size cribs in our home, so this info comes from first-hand experience. My daughter has a reg. standard size crib in the nursery & my hubby & I have a mini crib in our bedroom for babysitting when our daughter is working, ect. :) Anyhoo, hope this helps clear-up questions about the size of the cribs. ... ~ Annette