This hub is for buyers sourcing overnight baby diapers in bulk and building an OEM private label. The short version: hold target is 12-hour, the core needs a higher SAP load (about 10–14 g), bulk MOQ is usually 1–2 containers, and you should sample mid-container. Use FOB or CIF knowingly, and ask the supplier questions about AUL, rewet, and QC before you sign.

Why overnight changes the spec

Overnight diapers are not day diapers with more ink. The hold target is around 12 hours, which means a higher SAP load in the core — roughly 10–14 g versus 6–9 g for day. The absorbency science page explains the hold-versus-speed trade-off, and the SAP spec page shows what a core manufacturer actually controls.

Bulk MOQ and the container reality

Bulk buyers plan in containers, not cartons. A realistic first order is 1–2 containers; the MOQ negotiation guide shows how to lower the minimum without losing sampling rights. For resale rather than private label, the wholesale OEM overview and the best-value China wholesale page frame the price.

Mid-container sampling is the rule

A pre-production sample proves the first diaper, not the ten-thousandth. Require a mid-container sample and test AUL and rewet. Factories with an in-house lab make this practical; the safety analysis covers what the test reports should show.

Incoterms: FOB vs CIF

FOB means you own the goods at the port and control freight; CIF bundles ocean cost but hides it. The container cost breakdown is the number to compare. When importing, follow the step-by-step 2026 checklist.

Choosing the supplier

Use the OEM selection guide to shortlist, and the sourcing hub for the wider importer picture. The overnight adult OEM specs page is useful if your line spans adult and baby.

The five questions that matter

Q: What SAP load for overnight?
A: About 10–14 g; day cores run 6–9 g.

Q: How much bulk MOQ?
A: Usually 1–2 containers; negotiate down with sampling rights kept.

Q: FOB or CIF?
A: FOB for freight control; CIF is simpler but less transparent.

Q: Do I need a mid-container sample?
A: Yes — pre-production samples miss batch drift.

Q: What spec proves overnight hold?
A: AUL and rewet written into the purchase spec and tested mid-batch.

Editorial transparency

A buyer's hub, not a vendor ranking. Ranges are typical industry patterns; confirm specs, incoterms, and MOQ with your chosen factory and your market's rules.

Read the full guides

This hub points to the deep dives in this batch: