# Portable crib mattresses and mattress covers by crib size Which portable crib mattresses and mattress covers fit a standard or mini crib? First Essentials Portable Crib Mattress \- 3": It is designed to fit standard porta\-cribs and mini cribs\. Bundle of Dreams Innovative Sleep Portable Crib Mattress 24 x 38: The mattress is designed to fit all standard\-size portable cribs, and the listing also says it fits mini portable cribs\. Green Frog Standard Crib Mattress Cover: Fits most standard\-size crib mattresses and toddler beds\. Green Frog Mini Mattress Cover: Designed to fit mini portable cribs and pack\-n\-plays\. ### 1. [First Essentials Portable Crib Mattress \- 3"](/products/ucp/megababiesusa-com/4325842124939) (sold by megababiesusa\.com) It is designed to fit standard porta\-cribs and mini cribs\. - Fit: It is designed to fit standard porta\-cribs and mini cribs\. (guide) - Dimensions: The mattress measures 24 inches by 38 inches by 3 inches\. (guide) - Material: The mattress is described as 10 percent vinyl and 90 percent foam\. (guide) - Cleaning: The design is waterproof for easy cleanup\. (guide) ### 2. [Bundle of Dreams Innovative Sleep Portable Crib Mattress 24 x 38](/products/ucp/megababiesusa-com/9076477624574) (sold by megababiesusa\.com) The mattress is designed to fit all standard\-size portable cribs, and the listing also says it fits mini portable cribs\. - Fit: The mattress is designed to fit all standard\-size portable cribs, and the listing also says it fits mini portable cribs\. (listing) - Dimensions: The mattress measures 38 inches long by 24 inches wide by 3 inches high\. (guide) - Material: The outer material is described as ultra\-durable, nylon\-reinforced vinyl\. (guide) - Cleaning: The edges are bound and stitched to keep moisture from seeping in, so it can be cleaned with soap and water\. (guide) ### 3. [Green Frog Standard Crib Mattress Cover](/products/ucp/megababiesusa-com/7821455622398) (sold by megababiesusa\.com) Fits most standard\-size crib mattresses and toddler beds\. - Fit: Fits most standard\-size crib mattresses and toddler beds\. (listing) - Dimensions: Measures 28\.5 inches by 52\.5 inches by 9 inches\. (listing) - Material: Made of soft cotton\. (listing) - Cleaning: Machine washable\. (listing) ### 4. [Green Frog Mini Mattress Cover](/products/ucp/megababiesusa-com/7821374980350) (sold by megababiesusa\.com) Designed to fit mini portable cribs and pack\-n\-plays\. - Fit: Designed to fit mini portable cribs and pack\-n\-plays\. (listing) - Dimensions: Measures 27 inches by 39 inches by 5 inches\. (listing) - Material: Made of soft cotton\. (listing) - Cleaning: Machine washable\. (listing) Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-29T19:28:35.382Z. This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [Every tool, in your browser through WebMCP](/agent) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)