Support Guide
A Pillow Between the Knees: What the Sources Say
ACOG and Mayo Clinic both mention a pillow between the knees when you lie on your side. Here is what the sources say. A separate section below maps where our shapes physically sit; neither source evaluates Queen Rose products.
What the sources say
ACOG says it may help to place a pillow between your knees. Mayo Clinic suggests placing pillows between your bent knees.
Neither page explains why. We won't add a reason of our own.
Which of our shapes sits there
The sources discuss pillow placement generally. They do not evaluate or recommend Queen Rose products; the section below just maps where each of our shapes physically sits.
- U-shape — one side sits between your legs
- E-shape — a channel between your legs
- Contour pillow — the lower section fits between your legs
The honest part
A pillow supports the position you choose — it does not prevent normal movement. And it's support for how you rest, not treatment for how you feel. For questions about pregnancy sleep positions, follow the guidance of a qualified healthcare professional.
Where to go from here
Where Support Goes When You Sleep on Your Side in Pregnancy covers the other two places the sources mention.
Sources
ACOG — Can I sleep on my back when I'm pregnant? (January 2021).
Mayo Clinic — Back pain during pregnancy (12 March 2024).
Checked by Queen Rose on 6 October 2026.
FAQ
Q · Does it have to be a pregnancy pillow?
For the between-the-knees placement, ACOG says "a pillow." Mayo Clinic mentions pregnancy or support pillows.
Q · Why do people put a pillow between their knees?
The two sources we used don't explain it on these pages, so we won't give a reason of our own.