Quick answer
Comotomo bottles work well as a storage and feeding option for milk expressed with your Willow pump, but they require a separate adapter or transfer step since Willow bags are the primary collection container.
Why combine Comotomo with Willow?
Many parents want a single bottle that can both store pumped milk and feed baby directly. Comotomo's wide-mouth nipple is designed to mimic the breast, which can help reduce bottle refusal in breastfed babies. The key trade-off is that Willow pumps collect milk into sealed bags, not bottles, so you'll need to transfer the milk or use an adapter to feed directly from a Comotomo.
This combo works best if you value bottle-feeding ease and are willing to add a short transfer step. It's less ideal if you want a fully closed system with no pouring.
Trade-offs at a glance
- Direct feeding from Willow bag: Willow pumps collect milk into proprietary bags. You can attach a nipple directly to the bag for feeding, but the bag is not designed for repeated use or easy cleaning. Best for occasional use; not ideal for daily feeding.
- Transfer to Comotomo bottle: Pour pumped milk from Willow bags into a Comotomo bottle. The wide deck makes pouring and cleaning simple, and the bottle's air vents reduce gas. Adds a step but gives you a baby-friendly bottle for every feed.
- Using an adapter (not included): Some third-party adapters let you pump directly into wide-neck bottles like Comotomo. Check compatibility with your Willow model before buying. Requires extra purchase and verification; not a guaranteed fit.
Product facts
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Comotomo 8 oz Baby Bottles (2-Pack): Comotomo baby bottles feature a wide-mound nipple with built-in air-vents to mitigate 'nipple confusion' and help even the fussiest of babies take a bottle. This design can make the transition from breast to bottle smoother for your baby, reducing feeding frustration.
Comotomo 8 oz Baby Bottles (2-Pack)
Who should use this combo?
Best for
- Parents who want a bottle that closely mimics the breast to ease bottle refusal
- Those comfortable with a short transfer step for daily feeding
Not for
- Parents who need a fully closed, no-transfer pumping and feeding system
- Those who prefer pumping directly into a bottle without adapters
