# Toddler Beds and Water Mattresses: Mattress Requirements Are toddler beds safe to use with a water mattress? The checked facts do not say whether these toddler beds are safe with a water mattress\. They do state the mattress requirements for each bed\. Dream On Me Brookside Toddler Bed: The manual requires a full\-size crib mattress at least 51\-58 inches long, 27\-1/4 inches wide and 4 inches thick, but no more than 5 inches thick\. The maker says any Dream On Me non\-toxic Greenguard certified standard crib mattress gives a perfect fit\. A Dream On Me standard mattress is required and is sold separately\. Dream On Me 642 / Classic Sleigh Toddler Bed: The manual requires a full\-size crib mattress 51\-58 in long, 27\-1/4 in wide and 4\-5 in thick\. ### 1. [Dream On Me Brookside Toddler Bed](/products/ucp/megababiesusa-com/4513888501899) (sold by megababiesusa\.com) The maker says any Dream On Me non\-toxic Greenguard certified standard crib mattress gives a perfect fit\. - Mattress size: The manual requires a full\-size crib mattress at least 51\-58 inches long, 27\-1/4 inches wide and 4 inches thick, but no more than 5 inches thick\. (manual) - Mattress type: The maker says any Dream On Me non\-toxic Greenguard certified standard crib mattress gives a perfect fit\. (guide) ### 2. [Dream On Me 642 / Classic Sleigh Toddler Bed](/products/ucp/megababiesusa-com/4529384685707) (sold by megababiesusa\.com) The manual requires a full\-size crib mattress 51\-58 in long, 27\-1/4 in wide and 4\-5 in thick\. - Mattress size: The manual requires a full\-size crib mattress 51\-58 in long, 27\-1/4 in wide and 4\-5 in thick\. (manual) - Mattress type: - ## Also cited in the text - Dream On Me Brookside Toddler Bed, mattress: A Dream On Me standard mattress is required and is sold separately\. (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 2026-10-20T08:19:32.831Z. 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)