Home / Better sleep

Full body pregnancy pillow: picking the shape that fits your body and your bed

By the Life in Good Form editors. Updated 2026-10-13.

We research products from makers' specs and health sources; we do not run hands-on tests. Links to Amazon may earn us a commission at no cost to you. How this works.

Quick answerA full body pregnancy pillow supports your head, bump, back and knees at once so you can stay on your side. The three main shapes are straight, C and U. Pick a straight pillow for small or shared beds, a C for one-side sleepers, and a U if you turn over often and have a queen or larger bed.
Our picks at a glance
  • Straight full body pillow with zip cover. Best for: Small beds, partners who need room, or a light setup. See options on Amazon
  • C-shaped full body pregnancy pillow. Best for: One-side sleepers in a full or queen bed. See options on Amazon
  • U-shaped full body pregnancy pillow. Best for: People who turn often and have a queen or king. See options on Amazon
  • Spare washable cover in a breathable fabric. Best for: Anyone who owns a large pregnancy pillow. See options on Amazon

Compare the picks and what to watch out for

Do you need a full body pillow at all?

The Sleep Foundation is clear that a pregnancy pillow is not a necessity, but it can help if pregnancy is disturbing your sleep. It notes comfort often drops in the third trimester as back and joint pain and heartburn increase. A full body pillow earns its place when you need support in several spots at once. If only your hips ache, a knee pillow may be enough; if only your bump needs propping, a wedge may do.

The reason to support side sleeping is safety as well as comfort. The NHS says the safest position to go to sleep is on your side, left or right, and that after 28 weeks falling asleep on your back can double the risk of stillbirth.

The shapes side by side

ShapeSupportBed spaceTrade-off
Straight (rectangular)One side: hug it and rest a knee on itLeastNothing behind your back unless you add a second pillow
C-shapedHead, one side of the body, and kneesModerateMust be moved to change sides
U-shapedHead plus front and back at onceMostBulky and warmer
InflatableFull body with a hole for the bumpLargeMade for lying face down; check with your midwife or doctor before using one for sleep

The Sleep Foundation names U, C and rectangular as the three main body pillow shapes and says U and C give fuller cradling while rectangular gives one-sided support. It describes inflatable pregnancy pillows as typically the largest kind and designed for stomach sleepers. For deeper detail, see the C-shaped and U-shaped guides.

Match the pillow to your bed

The Sleep Foundation lists mattress sizes as twin 38 by 75 inches, full 54 by 75 inches, queen 60 by 80 inches, and king 76 by 80 inches. Most body pillows measure between 48 and 54 inches long, according to its body pillow guide. That fits almost any bed. A U, which wraps you on both sides, is far easier to live with on a queen or king, especially if you share.

Fill, firmness and heat

The Sleep Foundation says polyester fiberfill is the most common fill in larger pregnancy pillows and tends to be softer, while foam-based pillows are firmer and memory foam is the most likely to trap heat. That is why memory foam shows up mostly in smaller pillows like wedges.

Full body pillows also cover more of you, so heat adds up. If you run warm, choose a fiberfill pillow with a breathable cover and keep your room cool. The Sleep Foundation suggests about 65 degrees Fahrenheit may help you fall asleep faster.

Washing and weight

Most full body pillows are too big for many home machines. The Sleep Foundation says most come with a removable cover to wash instead, and its body pillow guide notes foam is often spot-clean only. It puts a typical body pillow at 5 to 7 pounds, and some are heavier, so think about whether you can lift and turn it easily late in pregnancy.

Its body pillow guide also says many body pillows last up to about 2 years, with latex and down lasting longer.

What to look for when you buy

Straight full body pillow with zip cover

Best for: Small beds, partners who need room, or a light setup

The Sleep Foundation says most body pillows run 48 to 54 inches long and give one-sided support, which is enough to hug and rest a knee on.

Watch out: No back support. Add a wedge or folded pillow behind you if you roll flat.

See options on Amazon

C-shaped full body pregnancy pillow

Best for: One-side sleepers in a full or queen bed

The Sleep Foundation calls the C one of the most versatile pregnancy pillow styles and notes it is not very bulky.

Watch out: You have to move it to switch sides.

See options on Amazon

U-shaped full body pregnancy pillow

Best for: People who turn often and have a queen or king

Support on both sides means you can roll over inside it without rebuilding your pillows.

Watch out: The Sleep Foundation describes the U as rather bulky. Measure first.

See options on Amazon

Spare washable cover in a breathable fabric

Best for: Anyone who owns a large pregnancy pillow

Because many machines cannot fit the whole pillow, the cover is what you wash. A spare means the pillow is never out of use.

Watch out: Covers are cut for specific shapes and sizes. Match the exact model or dimensions.

See options on Amazon
When to talk to a doctor: A pillow eases discomfort but does not treat pregnancy conditions. Call your midwife or maternity unit immediately if your baby is moving less than usual or their usual pattern of movements changes; the NHS says not to wait until the next day, even in the middle of the night. After the birth, keep the pillow out of your baby's sleep space, which Safe to Sleep says should hold only a fitted sheet.

Questions people ask

What is the best shape of full body pregnancy pillow?
It depends on how you sleep. A U suits people who change sides often, a C suits one-side sleepers, and a straight pillow suits small beds.
How long is a full body pillow?
The Sleep Foundation says most body pillows measure between 48 and 54 inches long. C and U pregnancy pillows vary by maker, so check the listing.
Can a full body pillow replace my regular pillow?
C and U shapes include a head section. If it is too low for your shoulders, add your usual pillow on top so your neck stays level.
Are inflatable pregnancy pillows safe for sleeping on my stomach?
They are designed for lying face down, but the NHS advises going to sleep on your side later in pregnancy. Ask your midwife or doctor before using one overnight.

Sources

Sources checked 2026-10-13.

Related guides