Relvay makes a pregnancy pillow. We also tell you below when you should not buy one.

The short answer

Vacuum it only if the maker says its filling can be compressed, and only when the pillow is completely dry. If the label says nothing, store it full shape in a breathable bag.

  • Dry first: sealed damp is the real risk.
  • Label decides: some pillows even ship with a reusable vacuum bag.
  • Plan the return: give it time to recover.

How do you store a pregnancy pillow for months?

Clean it, dry it all the way through, then pick compressed or full shape based on its label. Store it somewhere dry and off the floor, with the model name written on the bag.

  1. Clean the cover and the insert the way each label says. Body oils and milk marks left in storage are harder to get out later.
  2. Dry it longer than feels necessary. Squeeze the thickest part. Cool or heavy means damp inside. Wait another day.
  3. Read the label for storage or compression. Look for words like vacuum, compress, or storage bag. No mention means no permission.
  4. Choose the bag. A maker-approved vacuum bag if compression is allowed. Otherwise a breathable cotton or fabric bag, or a clean duvet cover, not a sealed plastic bin.
  5. Pick the spot. A dry closet shelf or under a bed in a heated room. Skip damp basements, garages and attics that swing hot and cold.
  6. Label the bag. Model name, date stored, and where the cover is. Future you will thank you.

Why does moisture matter more than the bag?

Because a bag cannot dry a pillow, it can only keep in what is already there. Sealing in even slight dampness gives mildew and odor months to build.

14 weeks, second pregnancy

After my first baby I washed my big C pillow, let it dry on the line for an afternoon, and squeezed it into a vacuum bag. It went down to the size of a folded towel, which felt like such a win. The bag went into a plastic tub in the basement, under the camping gear.

Two years later I was pregnant again and so happy to go get it. I cut the bag open and the smell hit me first: musty, like a swimming towel left in a gym bag. One end stayed flat and hard no matter how much I punched it. I sat on the basement stairs with it on my lap and felt silly for how much I had been looking forward to a pillow.

It was never the vacuum bag's fault. It was one afternoon of drying, sealed in, in a damp room.

Pregnant woman sitting on basement stairs holding a flattened, musty pregnancy pillow just taken out of a cut-open vacuum bag
Two years in a damp basement, sealed with one afternoon of drying.

Dry first, then decide how small it goes. In that order, every time.

Should you compress it or keep it full shape?

Let the label and the dryness decide. Here is the decision in four rows.

Your situationCompress?How to store it
The maker supplies or names a reusable vacuum bagYes, as they describeFully dry, in their bag or one like it, for the time they allow.
The label says nothing about compressionNoFull shape in a breathable bag on a dry shelf.
Memory foam or other foam coreOnly if the maker says soFull shape otherwise. Foam can be slow to recover after being squeezed.
Not completely dry, or already smells mustyNo, not yetClean and dry it first. Store nothing that is damp.

Some brands do plan for compression. Frida Mom's compact pregnancy pillow comes with a reusable vacuum storage bag, and Sleepybelly includes a reusable vacuum seal bag for storage between pregnancies. That is the maker telling you its filling is built for it. Without that, keep it full shape.

How long does a compressed pillow take to come back?

Plan on hours to days, not minutes. Pillows that ship compressed give a clue: one retailer tells buyers to unpack, fluff and allow up to 72 hours for its compressed pregnancy pillows to fully expand.

  • Take it out at least a few days before you need it.
  • Fluff and turn it, and let it breathe in a dry room.
  • Smell it and check for spots before you put the cover back on.
  • Wash the cover before first use, following its label.

TEMPUR notes that its own temperature-sensitive foam returns to shape slowly after compression. If your pillow has a foam core, expect a slower recovery and give it the time.

Is storing it the same as packing it for a trip?

No. A few days squeezed into a suitcase is a different job from months on a shelf. For trips, see traveling with a pregnancy pillow. For cleaning before storage, start with how to wash a pregnancy pillow.

Frequently asked questions

Can you put a pregnancy pillow in a vacuum bag?

Only if the maker says its filling can be compressed, and only when it is completely dry. Some pillows come with a reusable vacuum bag for exactly this. If the label is silent, store it full shape.

How do I store a pregnancy pillow between pregnancies?

Clean and fully dry the cover and insert, then store it in a breathable bag on a dry shelf or under a bed in a heated room. Write the model name and date on the bag.

Why does my stored pregnancy pillow smell musty?

Most often it went into storage slightly damp, or sat somewhere humid. Clean and dry it as its label allows before using it again, and store it drier next time.

Will a compressed pregnancy pillow go back to its shape?

Many do, given time. Unpack it a few days early, fluff and turn it, and let it breathe in a dry room. Foam can be slower to recover than fiber filling.

Where the Relvay 3-Piece pillow fits in

If the next pillow you buy also has to live in a closet between pregnancies, size matters. Relvay makes a 3-Piece set of two small wedges and a strap, with a removable, washable cover. We do not publish a compression instruction for it, so store it full shape; at about 17 by 13 inches per wedge it fits on an ordinary shelf.

Relvay 3-Piece pregnancy pillow: two pink ribbed wedges joined by a flat strap, with a small oval cushion

Two wedges for bump and back, joined by a flat strap, about as wide as your torso. Keep a regular pillow between your knees. $79.99, 90-day returns.

See the 3-Piece set

Gabriela's story is a composite based on real reviews and public posts from pregnant side sleepers. Names and details are changed.