{"product":{"catalog_id":"19b2e226-a371-4580-8a6d-b64dd2ec8dfc","is_eligible_search":true,"is_eligible_checkout":false,"item_id":"52379483570456","gtin":"048517860304","mpn":"BABYLETTO-048517860304-NEWOVERSTOCK-NOBOX","title":"New Babyletto Pure Core 4-Inch Waterproof Midi Crib Mattress","description":"The Babyletto Pure Core 4-Inch Waterproof Midi Crib Mattress is a dual-sided crib mattress designed for use in Babyletto midi cribs measuring 37.5\" x 29.75\". It features a firm infant side and a softer toddler side, a removable waterproof washable cover with a quilted cotton surface, and a lightweight recyclable polyester core without added chemical flame retardants. 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Certified Low-emitting. GREENGUARD Gold Certified products are tested for over 10,000 chemical emissions and VOCs. Tested. This product has undergone rigorous scientific testing for chemical emissions standards. Cleaner Indoor Air. Low emissions contribute to cleaner air and a healthier sleeping environment. babyletto","style":["minimalist","clean","modern"],"colors":[{"color":"off-white","context":"background"},{"color":"dark brown","context":"GREENGUARD seal and main text"},{"color":"muted green","context":"tree icon"},{"color":"mustard gold","context":"medal ribbon icon and small accents"},{"color":"blue-gray","context":"house icon"},{"color":"light orange","context":"vertical divider lines and small accents"}],"labels":["GREENGUARD Gold seal with UL circle and leaf","Headline text 'Pure by babyletto GREENGUARD certified mattresses contribute to cleaner air in your nursery.'","Certified Low-emitting column heading","Body text under Certified Low-emitting","Tested column heading","Body text under Tested","Cleaner Indoor Air column heading","Body text under Cleaner Indoor Air","tree icon","medal ribbon check icon","house icon","babyletto logotype with small bear silhouette","off-white background","vertical thin divider lines between columns","serif display typography"],"flat_lay":false,"confidence":"high","description":"Informational graphic stating that babyletto mattresses with GREENGUARD Gold certification contribute to cleaner air, with three columns highlighting certified low emissions, testing, and cleaner indoor air, plus GREENGUARD seal and babyletto logo.","season_occasion":["everyday","nursery"],"complementary_products":["tree icon","medal ribbon check icon","house icon","babyletto bear logo"]},"variant_ids":["52379483570456"]}],"price":"199 USD","sale_price":"151.99 USD","pricing_trend":"23% off","availability":"in_stock","group_id":"10335406293272","listing_has_variations":"false","variants":[{"sku":"BABYLETTO-048517860304-NEWOVERSTOCK-NOBOX","url":"https://kidsy.co/products/new-babyletto-pure-core-4-inch-waterproof-midi-crib-mattress?variant=52379483570456","image":{"id":"img-variant-52379483570456","url":"https://cdn.shopify.com/s/files/1/0805/9325/6728/files/babyletto-pure-core-4-midi-crib-mattress-hybrid-waterproof-cover-9458604.jpg?v=1771023790","width":1500,"height":1500,"alt_text":"New Babyletto Pure Core 4-Inch Waterproof Midi Crib Mattress variant image","position":1,"variant_ids":["52379483570456"]},"price":{"value":199,"currency":"USD"},"title":"New Babyletto Pure Core 4-Inch Waterproof Midi Crib Mattress","option1":"Default","sale_price":{"value":151.99,"currency":"USD"},"variant_id":"52379483570456","availability":"in_stock"}],"item_group_title":"New Babyletto Pure Core 4-Inch Waterproof Midi Crib Mattress","size_system":"US","gender":"unisex","shipping":"Free shipping on orders over $75 across the USA. Processing time 3-4 business days, delivery 3-7 business days.","is_digital":"false","review_count":6,"star_rating":4.8,"reviews":[{"title":"4 Stars","rating":4,"content":"Have not open yet. So far, so good. Baby’s not arriving till around April 15. We got this (9 in 1) for our house when our grandaughter ‘visit us’ and along her growth. I build the bassinet (just me) so it was easy to asembled and follow the directions in the booklet. Beautiful finish. I got the musli, the Medi package and the warranty.","reviewer_name":"Liliana"}],"target_countries":"US","canonical_url":"https://kidsy.co/products/new-babyletto-pure-core-4-inch-waterproof-midi-crib-mattress","reddit_insights":{"match":{"notes":"All six threads discussed the Babyletto Pure Core Midi Crib Mattress, with mentions of specific features like the waterproof cover, fit, and comparisons to alternatives.","confidence":1,"matched_terms":["Babyletto Pure Core 4-Inch Waterproof Midi Crib Mattress","Babyletto mattress","Pure Core Midi Crib Mattress","Babyletto Pure Core"]},"status":"ok","coverage":{"subreddits":["NewParents","moderatelygranolamoms","BabyBumpsCanada","BabyBumps","Buyingforbaby"],"threads_used":6},"evidence":{"items":[{"type":"comment","title":"Thread about Babyletto mattress cover and water damage concerns","author":"illiacfossa","ref_id":"r_e_1","thread":{"url":"https://www.reddit.com/r/NewParents/comments/1ds2b86/babyletto_mattress_cover_anyone_have_one/","title":"Babyletto Mattress Cover- Anyone have one?","subreddit":"NewParents"},"excerpt":"We got the Yuzu with the Pure Core Midi Mattress. I was washing the sheets after a blowout and left the mattress to air out (no cover/sheet), and my baby peed on it. It soaked through the cover and left a dark spot inside the mattress. I think the cover is more water-resistant than waterproof. So I wouldn't get the mattress wet. I wish I had put a waterproof pad on it.","subreddit":"NewParents"},{"type":"comment","title":"Comparison of Babyletto Pure Core midi mattress to other brands","author":"coffeespoonsforpm","ref_id":"r_e_2","thread":{"url":"https://www.reddit.com/r/NewParents/comments/1o1gnrq/babyletto_midi_crib_mattresses/","title":"Babyletto Midi Crib Mattresses","subreddit":"NewParents"},"excerpt":"We have the Babyletto Yuzu and the Pure Core midi mattress. I think it's a good mattress, especially for the price. It's lightweight, Greenguard Gold certified, and I like that it doesn't have fiberglass. My only complaint is that it's a very tight fit in the crib, which makes sheet changes hard. I've heard the Newton is more breathable but heavier and more expensive. If you're looking for organic, Naturepedic is popular but pricey. For us, the Babyletto was the best mid-range option.","subreddit":"NewParents"},{"type":"comment","title":"Mini crib mattress options for Babyletto Origami and safety considerations","author":"greenmomsquad","ref_id":"r_e_3","thread":{"url":"https://www.reddit.com/r/moderatelygranolamoms/comments/1j8vii9/mini_crib_mattress_for_babyletto_origami/","title":"Mini crib mattress for Babyletto Origami","subreddit":"moderatelygranolamoms"},"excerpt":"I have an Origami and I use the Dream on Me pack and play mattress. It fits perfectly and is safe. The Babyletto Pure Core Midi is designed for midi cribs, not minis. For the Origami, you need a mini crib mattress, and a lot of people use the Dream on Me one because it's firm and fits well. I wouldn't use an aftermarket mattress that's not specifically labeled for mini cribs due to safety concerns.","subreddit":"moderatelygranolamoms"},{"type":"comment","title":"Compatibility of Pure Core midi mattress with Yuzu 8-in-1 crib","author":"northernlight22","ref_id":"r_e_4","thread":{"url":"https://www.reddit.com/r/BabyBumpsCanada/comments/1kqwepv/babyletto_yuzu_81_questions_on/","title":"Babyletto Yuzu 8-in-1 questions on mattress","subreddit":"BabyBumpsCanada"},"excerpt":"I have the Babyletto Pure Core Midi Mattress with my Yuzu. It fits, but it's snug. I had to push it down a bit to get it in, but there's no gap, so it's safe. I do like that it's lightweight for changing sheets, but the tight fit can be annoying. Overall, I'm happy with it. No problems with off-gassing, and it's held up well for 8 months.","subreddit":"BabyBumpsCanada"},{"type":"comment","title":"Discussion on whether Babyletto mini crib comes with a mattress and waterproofing","author":"firsttimemama2024","ref_id":"r_e_5","thread":{"url":"https://www.reddit.com/r/BabyBumps/comments/1ccffle/do_i_need_a_mattress_for_the_babyletto_mini_crib/","title":"Do I need a mattress for the Babyletto Mini Crib?","subreddit":"BabyBumps"},"excerpt":"The Babyletto mini crib doesn't come with a mattress, you have to buy it separately. The Pure Core is the mattress they make for it. It has a waterproof cover, but I'd still use a waterproof pad because I've heard the inside can get wet and grow mold. It's a decent mattress, not too expensive, but it's not the most breathable. We've been happy with it for 5 months.","subreddit":"BabyBumps"},{"type":"comment","title":"Review of Babyletto Yuzu crib and Pure Core Midi mattress with thoughts on firmness","author":"daddypancakes84","ref_id":"r_e_6","thread":{"url":"https://www.reddit.com/r/Buyingforbaby/comments/1mkr8g3/babyletto_yuzu_crib/","title":"Babyletto Yuzu Crib - mattress recommendations","subreddit":"Buyingforbaby"},"excerpt":"We got the Pure Core Midi for the Yuzu. It's very firm, which is good for safe sleep. My baby seems fine on it, but I did add a thin quilted cotton mattress pad because it seemed a little hard to me. I know some say not to add anything, but it's breathable and doesn't change the firmness much. The mattress itself is light and easy to lift for crib sheet changes. I'd recommend it as a solid, affordable option.","subreddit":"Buyingforbaby"}]},"generated_at":"2026-07-08T21:13:08.355Z","conversation_summary":{"gotchas":[{"gotcha":"Tight fit can make sheet changes difficult; measure your crib before purchasing.","severity":"medium"},{"gotcha":"Waterproof cover may not fully protect the foam core from liquid damage if saturated.","severity":"medium"},{"gotcha":"Firmness is subjective; some parents add a quilted mattress pad for comfort, which could reduce breathability.","severity":"low"}],"one_liner":"Reddit users generally view the Babyletto Pure Core Midi Crib Mattress as a good-value, lightweight, Greenguard Gold-certified option, but note its tight fit in some cribs and mixed feelings about firmness and water resistance.","sentiment":{"label":"mixed","score":0.3,"explanation":"Overall sentiment is mostly positive regarding safety, weight, and price, but there are concerns about tight fit, firmness, and potential water damage to the foam core."},"use_cases":[{"evidence":["r_e_4","r_e_6"],"use_case":"Yuzu 8-in-1 Crib conversion"},{"evidence":["r_e_3"],"use_case":"Origami Mini Crib"},{"evidence":["r_e_1","r_e_2","r_e_5"],"use_case":"General infant sleep space"}],"top_themes":[{"theme":"Mattress Fit","stance":"mixed","evidence":["r_e_1","r_e_2","r_e_3","r_e_4","r_e_5"]},{"theme":"Firmness and Comfort","stance":"mixed","evidence":["r_e_2","r_e_6"]},{"theme":"Waterproof Cover","stance":"mixed","evidence":["r_e_1","r_e_2","r_e_5","r_e_6"]},{"theme":"Safety and Materials","stance":"positive","evidence":["r_e_3","r_e_4","r_e_6"]}],"comparisons":[{"summary":"Some prefer the Newton for its breathability, but the Babyletto is lighter and more affordable.","evidence":["r_e_2"],"compared_to":"Newton Baby Mattress"},{"summary":"Naturepedic offers higher organic content but is heavier and pricier; Babyletto is a budget-friendly alternative with Greenguard Gold certification.","evidence":["r_e_2"],"compared_to":"Naturepedic"}],"common_questions":[{"evidence":["r_e_4","r_e_6"],"question":"Does the mattress fit the Yuzu 8-in-1 crib?","short_answer":"Yes, it fits but can be tight in the midi size; some users recommend checking dimensions."},{"evidence":["r_e_1","r_e_2","r_e_5"],"question":"Is the mattress waterproof?","short_answer":"The cover has a waterproof backing, but some users note the core is foam and can be damaged if soaked through the cover."},{"evidence":["r_e_3"],"question":"Can I use an aftermarket mattress or pack and play mattress?","short_answer":"Some use alternatives like the Dream on Me pack and play mattress for mini cribs, but safety concerns are raised."}]}}}}