Finding a body pillow cover that actually fits a pregnancy pillow can be surprisingly frustrating. Pregnancy pillows come in more shapes and sizes than any other pillow category, and standard body pillow cases rarely accommodate them properly. The wrong cover bunches in the curves, slides off during the night, or restricts the pillow’s shape so it no longer supports you where you need it. Here is how to find covers that fit the most popular pregnancy pillow styles.
Why Standard Covers Do Not Fit
Standard rectangular body pillow cases are designed for full-length straight body pillows, typically measuring 50 x 137 cm. Most pregnancy pillows are not straight rectangles. U-shaped, C-shaped, and J-shaped pregnancy pillows have curves, bends, and varying widths along their length. Forcing a shaped pillow into a rectangular case distorts the shape and eliminates the ergonomic support the pillow was designed to provide.
Even within the same shape category, dimensions vary widely between brands. One C-shaped pregnancy pillow might measure 140 cm along the outer curve while another measures 155 cm. The arm widths, curve radius, and overall bulk differ enough that a cover sized for one brand’s C-shaped pillow may not fit another brand’s version of the same shape.
Covers for U-Shaped Pregnancy Pillows
U-shaped pregnancy pillows need covers specifically made for the U-shape. These covers have two long arm sections connected by a curved base panel. The fit depends on matching three measurements: total outer length (measured from tip to tip along the outside), inner width (the gap between the two arms where your body rests), and arm circumference (the girth of each arm section).
Most U-shaped pillow manufacturers sell their own replacement covers, and these provide the best fit because they are cut to the exact dimensions of that specific pillow model. Third-party U-shaped covers are available in generic sizes (small, medium, large) but check the listed dimensions carefully against your pillow’s measurements.
Look for covers with a full-length zip running along the inside edge of one arm and across the base. The long zip makes fitting and removing the cover much easier than designs with a short zip at one end, which require you to wrestle the entire pillow through a small opening.
Momcozy U-Shaped Pregnancy Pillow
Covers for C-Shaped Pregnancy Pillows
C-shaped covers follow a single continuous curve. The critical measurement is the total length along the outer curve, plus the width of the pillow at its widest point. C-shaped covers typically have a zip running along the inner curve from one end to the other.
Some C-shaped pregnancy pillows have a wider head section that tapers toward the foot end. Covers for these pillows must accommodate the varying width — a straight-sided cover will be too loose at the narrow end and too tight at the wide end. Confirm whether your pillow tapers before buying a generic C-shaped cover.
Covers for J-Shaped Pregnancy Pillows
J-shaped pillow covers need to fit the curved hook at the top (which supports the head and neck) and the straight body section. The hook radius and size vary considerably between brands. Some J-shaped pillows have a tight, compact hook while others have a wide, generous curve. The body section length also varies from 100 cm to 140 cm.
Brand-specific covers are strongly recommended for J-shaped pillows because the hook dimensions are the most variable and hardest to match with generic covers.
Best Fabrics for Pregnancy Pillow Covers
Bamboo Rayon
The top recommendation for pregnancy. Bamboo’s moisture-wicking and cooling properties help manage the elevated body temperature common during pregnancy, especially in the second and third trimesters. The natural softness feels gentle against sensitive skin that may be more reactive during pregnancy.
Jersey Cotton
Jersey’s natural stretch makes it one of the easiest fabrics to fit over bulky pregnancy pillows. The stretchy knit accommodates slight size mismatches between cover and pillow without bunching. Jersey feels soft and comfortable, though it does not wick moisture as effectively as bamboo.
Organic Cotton
For pregnancy, many parents prefer organic fabrics free from chemical treatments and dyes. GOTS-certified (Global Organic Textile Standard) cotton covers ensure the fabric is grown and processed without harmful chemicals. Organic cotton in a percale weave provides good breathability for warm sleepers.
Momcozy U-Shaped Pregnancy Pillow
Features That Matter During Pregnancy
Easy Removal
During pregnancy, bending and stretching to change a pillow cover becomes increasingly difficult. Choose covers with full-length zips that allow the cover to open flat for easy pillow insertion. Avoid envelope-style closures that require stuffing the pillow through a narrow opening.
Machine Washable at 40+ Degrees
Pregnancy often brings increased sweating, which means more frequent cover washing. Covers that tolerate regular machine washing at 40 to 60 degrees without shrinking or losing shape save significant hassle. Quick-dry fabrics are a bonus since you will want the cover back on the pillow the same day. Our pillow care guide covers optimal washing for every fabric.
Hypoallergenic
Pregnancy can trigger new sensitivities or worsen existing allergies. Covers made from bamboo, Tencel, or organic cotton are less likely to irritate sensitive skin than chemically treated polyester or conventional cotton.
Buying Two Covers
Always buy at least two covers for a pregnancy pillow. With weekly washing (recommended), having a spare means you never have to sleep on an uncovered pillow while the other cover dries. If your pillow uses a brand-specific cover shape, buy the spare at the same time as the pillow — covers sometimes sell out or get discontinued.
Browse our body pillow case reviews for pregnancy-specific covers, and our pregnancy pillow section for pillow recommendations.
Teresa created SaunaReviewer.com after discovering how transformative sauna therapy was in her own life. Today, she helps thousands of readers find reliable, honest information about saunas, accessories, and at-home wellness. Her mission is to make choosing the right sauna easier, clearer, and stress-free.
