Nook Sleep Promo Codes & Coupons September 2026 — Up to 20% Off

When the founders of Nook Sleep bought crib mattresses for their first child in 2008, they knew they wanted organic materials. Since small island developing states are their primary concern, the founders of Nook Sleep are confident that they will have a large selection of breathable and organic mattresses. They were wrong. Instead, they found mattress cores with rigid springs and toxic polyfibers wrapped in plastic (food grade or non-food grade), eliminating what little airflow there was. Everything is unbeatable. Among the organic mattresses on the market, they found that "organic" material was limited to cotton, which they knew would not suck moisture from a baby's skin. The most beneficial materials are placed inside plastic-wrapped cores or can only be found in expensive accessory mattress covers (which of course push up the price of crib mattresses).