Day and Night Milk Storage Bags | 100 Pack

Day and Night Milk Storage Bags | 100 Pack

$14.99
Skip to product information
Day and Night Milk Storage Bags | 100 Pack
  • Day and Night Milk Storage Bags | 100 Pack
  • Day and Night Milk Storage Bags | 100 Pack
  • Day and Night Milk Storage Bags | 100 Pack
  • Day and Night Milk Storage Bags | 100 Pack
Day and Night Milk Storage Bags | 100 Pack

Day and Night Milk Storage Bags | 100 Pack

$14.99

100 bags: 50 Day bags + 50 Night bags, 7oz each

Leak-proof double zipper with easy-pour spout

BPA and phthalate free

Freezer-safe, leak-proof, pre-sterilized milk bags — designed around your baby's natural day and night rhythm, so you always know which milk is which.

Leak-Proof

Easy-Pour Spout

Tear-Away Top

Write-On Label

Most storage bags treat all milk the same. Ours don’t.

Grounded in science.

Daytime milk helps babies stay alert. Nighttime milk helps them sleep. Aaya bags are designed so your freezer stash works the way your body intended.

Pours clean. No spills.

The easy-pour spout means less fumbling and no spills when you’re half asleep transferring milk at 3am.

Stays sealed. Every time.

Double zipper lock on every bag. Press, seal, done. Nothing leaks in the fridge, the freezer, or your cooler bag.

Lay flat or stand up.

Lay flat to freeze faster and save space. Stand upright in the fridge when you need quick access. The bag works either way.

What’s in the milk?

Your milk changes with the rhythm of the day.

Your baby isn’t born with a circadian rhythm — that natural sense of day and night takes time to develop. Until then, your milk becomes their guide. Each time you pump or feed, you’re giving your baby exactly what they need — the energy to explore by day and the calm to rest by night.
Character illustration
Day

Energy and Alertness

Higher in cortisol and energy-promoting amino acids. Helps babies stay alert, curious, and active through the day.
Night

Calm and Rest

Melatonin rises to up to 10 times daytime levels. Higher in fat and soothing nucleotides that calm the nervous system and support sleep.

Why Aaya Milk Bags?

aaya

Day & Night Milk Bags

Others
Keeps day and night milk separate
Supports baby's sleep-wake cycle
Labeled for time of day
Easy-pour spout
Tear-away top
Breast milk storage guidelines printed on bag
Love notes field
Leak-proof double zipper
Lay flat to freeze, self-stand

Other products you may like

Any last questions?
Does separating day and night milk actually make a difference?

Yess!! More than most people realize. Breast milk composition shifts significantly across a 24-hour period. Daytime milk is higher in cortisol and amino acids that promote energy and alertness. Nighttime milk is higher in melatonin, fat, and nucleotides that calm the nervous system and support sleep. When the timing matches, every bottle your baby gets is delivering exactly what their body is ready for at that moment.
What counts as “day” milk vs. “night” milk?

A good rule of thumb: golden bag for anything pumped between 6am and 6pm, navy bag for evening and overnight sessions. However, you don't have to watch the clock!! Your body starts shifting toward higher melatonin levels as the day winds down, so even a rough separation gets you most of the benefit.
Does freezing affect the melatonin in breast milk?

This is a big one for moms building a freezer stash. Melatonin levels in breast milk are preserved through freezing and thawing, so the night milk you pumped two weeks ago still carries the same sleep-supporting properties as the night you pumped it. Store it right and it works exactly the way your body intended.
How many milk bags are included?

100 bags total: 50 Day bags and 50 Night bags, 7oz each. Enough to build a solid stash of both without running out of one before the other.
How do I store the milk bags in the freezer?

Lay them flat. Bags frozen flat thaw faster and more evenly, and they stack in a fraction of the space of upright bags. Once frozen solid, you can stand them upright if that works better for your setup.