Review on Premium Organic Cotton Pack n Play Sheets with Floral Design - Compatible with Graco Pack n Play & Mini Crib - Pickle & Pumpkin Quality Sheets by Kristina Davis

They will not fit a 3 inch mini bed mattress! They are too small to stay on and are not safe. (I have a standard mini crib - 24" x 38" - with a 3" thick mattress. This is different than a play area like Pack n Play. However, I find that most play areas are larger than a mini crib. Check They sizes carefully!) I contacted the company and it was a pleasure dealing with them. First they sent me a replacement kit to see if there were any quality control issues with the first kit I received. The second sentence didn't work either. Then I got my money back. The sheets look good but they are not suitable for a mini cot and should not be advertised as such. If you're planning on using them for something smaller, you might be in luck.