Choosing the Right Pigeon Nipple Size: SS, S, M and L Explained
By Pigeon | Published: 2026-10-13
Category: Buying Guides
Pigeon wide neck nipples come in SS, S, M and L. Learn how flow stages work, when to size up, and how to match a nipple to your baby's feeding pace.
Quick answer
Start a newborn on SS (slow flow), move to S when feeds regularly stretch past about 20 minutes or your baby fusses at a nearly empty bottle, then step up to M and L only when feeding stays calm and comfortable at the current size. Pigeon wide neck nipples are sold in stages, so buy one stage at a time rather than a full set, and replace worn nipples instead of jumping a stage to fix a slow feed.
What the SS, S, M and L stages actually control
The stage letter describes flow rate, not baby age. SS is the slowest flow Pigeon makes for wide neck bottles, intended for newborns from 0+ months, and each step up lets milk pass more quickly. That matters because a newborn who gets milk faster than they can swallow may gulp air, cough, or pull away, while a baby who has outgrown a stage can fall asleep at the bottle before taking enough.
Because the letter is a flow rating, two babies the same age can legitimately use different stages. A calm, efficient feeder may stay on S longer than a distracted baby who needs a faster flow to finish a feed before tiring. Treat the letter as a starting point and let feeding behavior decide.
How to tell it is time to change nipple size
Watch the feed, not the calendar. The clearest sign to size up is a feed that consistently runs long while your baby stays interested and awake, or a baby who drains the bottle and still seems to want more. The clearest sign to stay put, or step back down, is milk pooling in the mouth, coughing, clicking, or milk running out the side of the mouth.
If a feed turns fussy in the middle, check the nipple itself before changing stages. A collapsed or softened nipple, a stretched opening, or a nipple that has been in daily use for a couple of months can slow flow on its own. Replacing the nipple often solves a slow feed without moving up a stage.
Match the nipple to the bottle you already own
Pigeon wide neck nipples are made for Pigeon wide neck bottles, so the stage letters only apply within that system. If you are stocking up, the Pigeon Wide Neck Nipple SS 3Pcs gives you three silicone nipples in the slowest stage, which suits a newborn or a baby who needs a gentler flow. Buying a multi-pack in one stage is usually smarter than buying several stages at once, because you will use the current stage every day and the next stage may sit unused for weeks.
The bottle you pair the nipple with also affects how a feed feels. A 5.4 oz bottle suits smaller, more frequent newborn feeds, while an 8.1 oz bottle makes more sense once feeds get larger. If you are not sure which stage to buy first, start with the stage that matches your baby's current feeding pace and keep one spare on hand.
Replacing nipples is part of sizing, not a separate chore
Silicone nipples wear with heat, washing and repeated use, and a worn nipple can change flow before your baby is ready for the next stage. Rotate a small number of nipples so wear is spread out, inspect them regularly for thinning, sticky texture, cracks or a widened opening, and retire any nipple that looks or feels different from a new one. A three-pack makes this practical because you always have a fresh nipple to compare against.
Keep the stage you are moving away from for a week or two rather than discarding it immediately. If the faster stage turns out to be too quick, you can step back without buying another pack.
Nipple stage decision rules
- Newborn, first weeks: Begin with SS (slow flow) and keep feeds calm and unhurried. Do not size up just because a feed takes 20 to 30 minutes; newborns are still learning to coordinate sucking and swallowing. Stay on SS until feeds shorten on their own or your baby stays alert and unsatisfied at the end of a bottle.
- Feeds getting long or frustrating: If most feeds run noticeably longer than usual, your baby stays interested but seems to work hard, or they finish the bottle and still root, try the next stage up. Change one stage at a time and give it several feeds before judging. One stage at a time; if coughing, gulping or spilling appears, step back down.
- Fast, messy or uncomfortable feeds: Coughing, clicking, milk running from the mouth, or a baby who arches away mid-feed usually means the flow is too fast. Return to the previous stage and check the nipple for wear before assuming your baby needs a different size. Flow that overwhelms your baby is a reason to slow down, not to push through.
- Nipple looks or feels worn: Replace it with a new nipple in the same stage. Thin, sticky, cracked or stretched silicone changes flow and is a replacement issue, not a sizing issue. Replace first, resize second.
Products that fit this decision
- Pigeon Wide Neck Nipple SS 3Pcs: Pigeon Wide Neck Nipple SS 3Pcs includes three silicone nipples in stage SS (slow flow), suitable from 0+ months, and fits Pigeon wide neck bottles. A three-pack in the slowest stage covers a newborn's early feeds and gives you spares to compare against as the silicone wears.
- PPSU Wide Neck Baby Bottle 2 Packs,5.4 Oz（for Newborns): The PPSU Wide Neck Baby Bottle 2 Pack is a 5.4 oz size designed for newborn feeding, with a wide neck that simplifies filling, mixing and cleaning. The 5.4 oz capacity matches the smaller, more frequent feeds of the newborn stage, and the wide neck makes it easy to pair with wide neck nipples.
- Pigeon Glass Nursing Baby Bottle Wide Neck (Pack of 4), Streamlined Body, Natural Feel, Easy to Clean, Heat-Resistant, 5.4 oz and 8.1 oz: The Pigeon Glass Nursing Baby Bottle Wide Neck 4-pack includes 5.4 oz and 8.1 oz bottles with a streamlined body and heat-resistant glass. Having both sizes on hand lets you keep the same nipple stage while the bottle volume grows with your baby's appetite.
Who this approach fits
Best for
- Parents using Pigeon wide neck bottles who need to choose a starting nipple stage
- Caregivers whose baby has outgrown the current stage but who want to avoid moving too fast
- Families who want to buy one stage at a time and replace nipples as they wear
Not for
- Parents using narrow neck or non-Pigeon bottles, since these stages are made for Pigeon wide neck bottles
- Babies with feeding difficulties or medical feeding needs, who should follow guidance from their pediatric provider rather than a stage chart alone
