Nook's groundbreaking pebble design combined with our fully breathable mattress cores keeps air flowing IN and AROUND baby. The Pebble mattress wrap has a raised pattern intentionally designed to facilitate airflow throughout the surface of the mattress. Unlike our competitors, Nook does not encase our mattress cores in dangerous plastics (food grade, medical grade or otherwise). We have gone the extra mile to create the most breathable mattresses cores. To cover them with a these barriers would eliminate all the benefits and negate baby's safety.

The Pebble Wrap is made of 100% organic cotton and eucalyptus- natures moisture-wicking warrior. In addition to its antimicrobial properties, it also assists in keeping baby cool and comfortable which promotes longer, restful sleep. Combined with the the most breathable sleep system in the market, over-heating will never be a concern with your Nook mattress.

Using mother natures oldest safeguard, Nook baths the Pebble fabric in low impact Zinc which protects the Pebble Wrap and mattress core from intrusion of mold, fungi growth, bed bugs and dust mites. This added layer of defense is ideal for little ones that struggle with allergies or skin sensitivities.