· Maeve Sutton
Firm or soft pregnancy pillow: which one holds through the night
Soft sells well and disappoints fast. It is the badly chosen parameter, because people judge a pillow by pressing it for two seconds in a shop or from a photo — never after fifty nights — which is the only moment that counts.
What a pillow that is too soft does
The bump is heavy. An under-filled arm compresses under that weight and, within a few nights, is reduced to two thicknesses of fabric at exactly the point where you need it. You are still sleeping “with a pillow”, but it holds nothing: the pelvis drops back down, and you wake up the way you did before you bought it.
The symptom is recognisable: the pillow seems perfect the first week, then feels worse without you being able to say why. That is not an impression — it is filling that has settled.
What a pillow that is too firm does
The opposite exists too. An arm that is too dense will not mould: instead of following the curve between the ribs and the hip, it creates a single pressure point. You feel it mostly under the lower hip, and it shows up as more frequent changes of side — so more wakings, which is exactly what you were trying to avoid.
The right level, and how to check it
| What your palm does | Firmness | What will happen |
|---|---|---|
| Sinks to the fabric, no resistance | Trop mou | Crushed within one or two weeks |
| Sinks about an inch and a half, then resists | Medium — what you want | Follows your body and keeps its volume |
| Barely moves | Trop ferme | A pressure point under your hip |
Do the test in the middle of an arm, not on the closed curve: the curve is always denser because the filling gathers there. Do it again after a week of use. A decent pillow will have softened slightly without losing its volume.
Firmness depends on the filling
The two are linked. Polyester fibre gives a stable medium firmness and puffs back up with a shake. Microbeads start very soft and settle markedly: they end up firmer than they began, but with less volume. Kapok is firm from the start and stays that way. The detail is in our guide on filling.
Reviving a pillow that has flattened
Before concluding it is dead, try this: take the cover off, hold the pillow by both arms and shake it firmly several times, then work the settled areas with your whole hands. The filling redistributes and some of the volume comes back. Repeated once a week, this noticeably extends how long it holds.
Some models have a zip that lets you add filling. It is a real advantage where it exists: a few handfuls of fibre are enough to bring back the original support.
What buyers report
Of the 129 written reviews we went through, 26 talk about the fabric and the finish and 22 about size and volume — material and hold come just behind sleeping comfort, which dominates with 43 mentions. Put another way: firmness is not argued over at the point of buying, it is discovered in use. Which is why being able to send back a model that does not suit matters.
Our U-shaped pregnancy pillow is fibre-filled, medium firmness, with a removable machine-washable cover. You have 30 days to run the test at home, over several nights — which is how firmness is judged.
Recorded by The Pregnancy Pillow, August 2026 — analysis of 129 written reviews. See how we test.
Maeve Sutton · Editorial lead at The Pregnancy Pillow
Maeve goes through buyer feedback before a model ever gets a page: she reads the reviews one by one, opens every photo customers send in, and holds what the description promises against what they actually received. That is the work that showed three of the four colour names described a different fabric. She writes the guides on this site.