# Firm crib mattresses for a newborn Which crib mattresses have a firm feel suitable for a newborn? Lullaby Earth Breathe\-Safe 2\-Stage: Dual firmness gives a firmer side for infants and a less firm reverse side for toddlers\. Testers describe the mattress as lightweight but strongly supportive, with firm edges that suit a newborn, and say the light weight makes the claimed 3D air circulation feel genuinely effective\. Lullaby Earth Healthy Support Crib Mattress 2 Stage: This is a two\-stage crib mattress with a firmer infant side and a cushion\-firm toddler side\. Naturepedic Organic Crib Mattress: The 2\-stage lightweight model is reported to feel as firm as a 150\-coil innerspring but at about half the weight, making sheet changes easier\. ### 1. [Lullaby Earth Breathe\-Safe 2\-Stage](/products/ucp/strolleria-com/7653908938826) (sold by strolleria\.com) Testers describe the mattress as lightweight but strongly supportive, with firm edges that suit a newborn, and say the light weight makes the claimed 3D air circulation feel genuinely effective\. - Firmness: Dual firmness gives a firmer side for infants and a less firm reverse side for toddlers\. (listing) - Newborn support: Testers describe the mattress as lightweight but strongly supportive, with firm edges that suit a newborn, and say the light weight makes the claimed 3D air circulation feel genuinely effective\. (review) - Weight: - ### 2. [Lullaby Earth Healthy Support Crib Mattress 2 Stage](/products/ucp/modernnursery-com/4799056019556) (sold by modernnursery\.com) This is a two\-stage crib mattress with a firmer infant side and a cushion\-firm toddler side\. - Firmness: This is a two\-stage crib mattress with a firmer infant side and a cushion\-firm toddler side\. (guide) - Newborn support: - - Weight: Yahoo Shopping calls this the roundup's lightest mattress at 7 pounds, making sheet changes easier; sources disagree, with the store listing 6\.5 pounds and LeafScore listing 8 pounds\. (review) ### 3. [Naturepedic Organic Crib Mattress](/products/ucp/modernnursery-com/4799042977892) (sold by modernnursery\.com) The 2\-stage lightweight model is reported to feel as firm as a 150\-coil innerspring but at about half the weight, making sheet changes easier\. - Firmness: The 2\-stage lightweight model is reported to feel as firm as a 150\-coil innerspring but at about half the weight, making sheet changes easier\. (review) - Newborn support: The innerspring Classic has a 150\-coil count, which the reviewer calls the minimum for firm infant support and would prefer to see raised to 252\. (review) - Weight: The 2\-stage lightweight model is reported to feel as firm as a 150\-coil innerspring but at about half the weight, making sheet changes easier\. (review) 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 2026-11-01T12:25:19.905Z. 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)