Relvay makes a pregnancy pillow. We also tell you below when you should not buy one.
The short answer
A belly-hole pillow is made for lying face-down for a while, not proven for sleeping that way all night later in pregnancy. The NHS says the safest way to go to sleep is on your side. Ask your midwife or OB before using one for sleep.
- Check: what the maker says it is for.
- Ask: your care team, with the product link.
- Default: go to sleep on your side.
What is a pregnancy pillow with a belly hole?
It is a large pillow, often inflatable, with an opening in the middle so your bump can sit in the gap while you lie face-down. The idea is to take your weight on your chest and hips instead of your belly.
The Cozy Bump is the best-known example. Mattress Clarity's review describes it as inflatable, about 72 by 28 by 9.5 inches, with two air chambers: a main one and a smaller ring around the opening that you can adjust. It needs an electric pump, sold separately, and both chambers should be fully inflated before use. The reviewer also noted a chemical smell at first that needed airing out.
Week 21, after a sleepless Sunday
Lucy had slept on her stomach since she was a kid. Now her bump made it impossible, and side sleeping felt like lying on a ledge. An ad showed a woman sprawled face-down on a pillow with a cutout, smiling. "I almost bought it in bed at 1 a.m.," she said. "Then I thought, nobody has actually told me if I am supposed to sleep like that now." So she saved the link and took it to her next midwife appointment.
The hole solves where your bump goes. It does not answer whether lying face-down all night is right for your weeks.
What are belly-hole pillows meant to be used for?
Mostly resting face-down for a period: reading, scrolling, working or relieving pressure on the back. The sources we read do not present them as a replacement for side sleeping through the night.
Mattress Clarity's reviewer expected to use the Cozy Bump short term and doubted they could sleep through the night on it, adding that for overnight use they would run it past a doctor. That is one person's experience, and the site discloses affiliate links, but it matches the design: holding a face-down position for hours, without turning, takes a lot of balance.
RestingFace-down for a while, awake, with the option to get up easily.
NappingFalling asleep is where the question changes. Ask your care team.
All nightNot what the sources we read describe it for, especially later in pregnancy.
Can you sleep face-down on one when pregnant?
That depends on your weeks and your health, so it is a question for your midwife or OB. General UK guidance is to go to sleep on your side, especially in the third trimester.
The NHS says the safest position to go to sleep is on your side, either left or right, and suggests supporting your bump with pillows and putting a pillow between your knees. Tommy's, the UK pregnancy charity, advises going to sleep on your side in the third trimester, and says that applies to daytime naps too. Neither describes belly-hole pillows as an alternative.
Early in pregnancy many people still lie on their front out of habit. Later, a pillow that makes face-down possible again can feel like a way around the side-sleeping advice. That is exactly why it is worth asking before you buy, not after.
A product can make a position comfortable without making it the right position to fall asleep in.
What does an "OB/GYN-approved" label actually tell you?
On its own, very little. The listing quoted by Mattress Clarity says the Cozy Bump is OB/GYN- and chiropractor-approved, but the claim does not say who approved it, for what use or for which weeks.
- Who approved it, and are they independent of the company?
- Approved for what: resting awake, napping, or overnight sleep?
- For which stage of pregnancy?
- Is there a written statement or study you can read?
A brand that has a real answer will usually share it. If the answer is vague, treat the label as marketing.
What should you ask before using one?
Ask the maker what the pillow is designed and tested for, and ask your midwife or OB whether lying face-down fits your pregnancy. Two short lists:
| Ask the maker | Ask your midwife or OB |
|---|---|
| What use is it designed for: resting, napping, overnight? | Is lying face-down for a while fine at my stage? |
| From and until which week of pregnancy? | What about falling asleep that way, including naps? |
| Who approved it, and can I see what they approved? | Is there anything in my pregnancy that changes the advice? |
| What if it loses air during use? | What position should I go to sleep in from now on? |
| Weight or size limits, and the full inflation and care instructions? | What else could help me get comfortable on my side? |
Bring the product link or a screenshot to the appointment. It turns a general question into a specific one.
If lying face-down causes pain or pressure, or you feel unwell, stop and contact your midwife, OB or maternity unit.
What did Lucy decide?
She kept face-down time for the daytime and learned to go to sleep on her side. That was her midwife's advice for her pregnancy, not a rule for yours.
Her midwife's answer was simple: lying on her front for a bit while awake was her call while it felt comfortable, but going to sleep should happen on her side. The harder part was making side sleeping feel less like a ledge. A pillow between her knees and one behind her back did more than she expected. "I still miss my stomach," she said. "But I stopped dreading bedtime."
Frequently asked questions
Is the Cozy Bump pillow safe to sleep on while pregnant?
We did not find evidence that it is designed or tested for sleeping face-down all night in later pregnancy. The NHS says the safest way to go to sleep is on your side. Ask your midwife or OB before using it for sleep.
Can I lie on my stomach while pregnant?
Early on, many people find it comfortable for a while. As the bump grows it usually stops being comfortable, and from the third trimester UK guidance is to go to sleep on your side. Your midwife or OB can advise for your pregnancy.
What is a pregnancy pillow with a hole for?
It lets you rest face-down with your bump in the opening, taking weight on your chest and hips. Reviews we read describe it for short periods rather than overnight sleep.
Can I nap on a belly-hole pillow?
Ask your care team. Tommy's advises going to sleep on your side in the third trimester and says this includes daytime naps.
What does OB/GYN-approved mean on a pregnancy pillow?
It depends on who approved it and for what. Ask the maker for the name, the use it was approved for and the weeks it covers. Without those details, treat it as marketing.
If side sleeping is new to you and pillows keep falling apart, our pregnancy pillow buying checklist walks through what to look for.
Lucy's story is a composite based on public posts from pregnant people who used to sleep on their stomachs. Names and details are changed. Her midwife's advice was for her, not general advice.
