Same price. Same promise. One is built for how you actually sleep.
Compared line by line against both live stores - last updated August 16, 2026.
The verdict up front: both are $59.99 contoured memory foam pillows for neck pain. If you sleep on your side, or switch between side and back - which is most people with morning neck pain - the Numa's dual-height flip design does what Derila's single contour cannot: it fills the shoulder gap that leaves your neck bent all night. Stomach-only sleepers are the one group better served by Derila.
Side by side
| Numa Pillow | Derila Ergo | |
|---|---|---|
| Price | ✓ $59.99 - half its $119.98 list price | $59.99 |
| Built for | ✓ Side AND back sleepers - flip between two contour heights | Back and stomach sleepers, single contour |
| Size | ✓ 69 x 28 x 14 cm - wider span, higher side loft | 54 x 36 x 12 cm |
| Proof | ✓ 4.7★ across 3,800+ reviews | 310 reviews |
| Foam | Slow-rebound memory foam, medium-firm | High-density memory foam, CertiPUR-US |
| Cover | Cooling, removable, machine washable | Cooling, removable, machine washable |
| Guarantee | ✓ 30-night sleep trial built for nightly use - full refund, no restocking fees, no questions | 60-day return window |
| Side-sleeper loft | ✓ 14cm high contour - built for the shoulder gap | 12cm maximum |
| Ships to | ✓ Worldwide, tracking within 24 hours, free over $90 | USA only |
Every number checkable on numapillow.com and derilashop.com, August 16, 2026.
Why the shape decides it
Every contoured pillow claims to align your neck. The question is: at which height? A side sleeper needs 4-6cm more loft than a back sleeper, because the shoulder holds the head further from the mattress. Derila answers with one contour and height zones. Numa answers with two separate contours - a lower one and a higher one - and you flip the pillow to match your position. That is why combination sleepers, the hardest group to fit, are where Numa's 3,800+ reviews cluster.
The one honest caveat
Exclusive stomach sleepers should look at Derila - that is the single scenario where its shape wins, and it is the whole list.
The math on risk
Same $59.99 either way - except one of them is a $119.98 pillow at half price, with twelve times the reviews, a higher side-sleeper loft, and a trial designed around actually sleeping on it for a month. If your mornings have not changed by night 30, you get every cent back. Choosing the pillow with 3,800 reviews is not a gamble; it is the control group.
