In depth: pillows explained
Expert Reviews slept on these pillows, it did not measure them
Every comfort verdict on this page comes from Expert Reviews, whose reviewers use each pillow for several nights at home and describe how it felt. That is useful, but it is not a laboratory test. There are no figures for height loss, heat retention or durability, and each review reflects one reviewer's build and sleeping position. The Dusk reviewer, for example, was a side sleeper who prefers soft pillows and used the medium version.
The roundup has a clear structure. Its main list names a best pillow per type: the Otty Deluxe Pure as best foam pillow overall, the Panda as best value foam, the Dusk as best down alternative and the Otty Adjustable as best adjustable. Further down, a shorter list of other pillows it has used gives star ratings, which is where the Piglet in Bed wool pillow appears with four stars and a Recommended award.
We use those verdicts as the comfort evidence and leave the rest to the maker's data. Where Expert Reviews quoted a price or guarantee that differs from what the maker shows today, we use the maker's current page for the price and say so.
A single reviewer also means a single set of preferences shaping every verdict on this page. We could not find a second independent source that reviewed the same pillows by name, so the comfort scores carry more uncertainty than in categories where several testers agree.
Panda against Otty Deluxe Pure: comfort versus terms
These two are close enough that the choice comes down to what you value. Expert Reviews found the Otty slightly more comfortable and the Panda slightly firmer. The Otty is 60 x 40 x 12 cm; Panda does not state its pillow's dimensions on its product page.
The terms are where they part. Panda offers a 30 night trial and a 10 year guarantee; Otty offers 14 days and, according to Expert Reviews, a one year guarantee. Panda also adds an inner protector. On 14 November the Panda cost £44.95 and the Otty £54.99.
If you have tried memory foam before and know you like a plush version, the Otty is the better bet. If this is your first foam pillow, the Panda's longer trial lets you find out at lower risk, which is why it takes first place in our comparison.
There is one more difference in what you get in the box. Panda's pillow has an inner protector; the Otty does not. Adding a separate protector to the Otty costs a few pounds and narrows the gap, but it does not change the trial or guarantee.
How long a pillow lasts depends on the filling
Expert Reviews' buying guidance says some pillows need replacing after as little as six months, others after two years, that down can last up to five years and feather up to eight. It suggests replacing a pillow once it has lost its shape or you wake with a stiff neck or blocked nose.
Guarantees give a rough guide to what the maker expects. Panda's 10 year guarantee is far longer than anything else here; Otty's is one year. Dusk, Piglet in Bed and Pillow Factory do not state a guarantee on the pages we read.
Cost per year is a fairer comparison than the shelf price. A £20 Dusk pair replaced every year costs less than a Panda kept for three years, but a Panda kept for its whole guarantee period costs less per year than anything else on this page.
Pillow protectors and regular airing extend all of them. The Panda's built in protector is a small advantage here, and Dusk's advice to air its pillows regularly applies to any filling.
Buying for two: matching pillows costs more than you think
Couples often buy two of the same pillow, and the price gap between the options doubles. Two Panda pillows cost £89.90 and two Otty Deluxe Pure pillows £109.98 at the prices on 14 November 2026, while a Dusk pair costs £20 in standard medium. The difference between the cheapest and most expensive pair here is about £90.
Matching pillows is not necessary if you sleep differently. A side sleeper and a front sleeper sharing a bed are better served by two different pillows, for example an Otty Adjustable on one side and a soft Dusk on the other, than by two of the same. That combination cost about £75 on the assessment date, less than two Otty Deluxe Pure pillows.
The trial terms also work per pillow. Panda's 30 nights apply to each pillow bought on its site, so a couple can try one before ordering the second. That costs nothing extra and avoids paying twice for a pillow that suits only one of you.
Buying guide: choosing the right pillow
Your sleeping position decides the height, and height decides more than the filling
A side sleeper has the widest gap to fill, the distance from the mattress to the ear across the shoulder, and that is why the Otty Adjustable reaches 15 cm at full fill and the Pillow Factory box pillow has a 10 cm wall. Expert Reviews' guidance, which it attributes to the Sleep Council, is that side sleepers need a medium to high pillow, back sleepers a medium one and front sleepers a soft, low one. A pillow that is too high for you bends your neck upwards, and one that is too low lets your head drop.
For a back sleeper the Panda's medium firmness is a sensible default. Front sleepers are badly served by most foam pillows: the Otty Deluxe Pure at 12 cm is already tall, and only the Otty Adjustable can be made low enough by taking foam out. A soft Dusk pillow is the cheaper way to get a low, squashy pillow for front sleeping.
If you change position several times a night, aim for the middle. Expert Reviews suggests a medium thickness pillow for mixed sleepers, which points to the Panda or a medium Dusk rather than the tall box shape of the Pillow Factory pillow.
Your mattress changes the sum. A soft mattress lets your shoulder sink further, so you need less pillow height than on a firm mattress. That is one reason a reviewer's verdict on height does not transfer perfectly to your bed, and one more argument for the adjustable Otty or a pillow with a long trial if you have just changed mattress.
Memory foam costs more because it keeps its shape, not because it feels softer
The three foam pillows cost £44.95 to £54.99, while the microfibre and down alternative pillows cost £12 to £20 each. What you pay for is a filling that springs back between nights; Expert Reviews noted that the Otty Deluxe Pure quickly regains its shape once you lift your head, which a microfibre pillow does not do in the same way.
That does not make foam the right choice for everyone. Foam feels denser and can feel warm, and the Deluxe Pure's boxy block shape was the main drawback Expert Reviews listed. If you like plumping a pillow and sinking into it, the Dusk pair gives you that feel for a fraction of the price, and you can replace it more often.
Shredded foam sits between the two. The Otty Adjustable moulds more freely than a solid block but still holds more shape than microfibre, and you can change the amount inside. It is the one foam pillow here that front sleepers can make low enough.
There is also a practical difference in size. The two Otty pillows are 60 x 40 cm, smaller than the 50 x 75 cm standard pillow used by Dusk, so a standard pillowcase will sit loosely on them. That makes no difference to comfort, but it is worth knowing if you like a neat bed.
Heat is the other trade off people mention with foam, but none of the sources we could use measured temperature, so we cannot rank these pillows on it. If you sleep hot, the Piglet in Bed wool pillow is the only one whose maker claims moisture wicking from the filling itself rather than the cover.
A long trial is worth more than a long list of features
No review can tell you how a pillow will suit your own neck and mattress, which is why the length of the trial carries weight in this comparison. Panda gives you 30 nights to return its pillow from its own site, according to its product page. Otty gives you 14 days on both its pillows. Dusk, Piglet in Bed and Pillow Factory do not state a trial on the product pages we read.
Two weeks is often too short to judge a new pillow, especially an adjustable one where you are still changing the fill. If you are unsure between the Panda and the Otty Adjustable, the longer return window is a practical reason to start with the Panda.
Check the conditions before you buy. Expert Reviews noted that Otty refunds the Adjustable minus the cost of delivery, and Panda's trial only applies to pillows bought on pandalondon.com, not through other retailers.
A guarantee is the other half of the terms. Panda's 10 year guarantee, stated on its product page, is ten times Otty's one year guarantee as listed by Expert Reviews. A guarantee does not cover a pillow simply becoming flatter with use, so read the maker's terms if long life is why you are paying more.
Washing the cover is easy; washing the pillow is where they differ
Every foam pillow here has a removable cover you can wash at 40°C, but none of the foam cores should go in a machine. Panda adds a built in protector under its bamboo cover, so the foam is shielded by two layers, which is why it leads on care.
The cheaper pillows are not easier to look after. Dusk recommends airing and professional laundering for its Feels Like Down pair, and Pillow Factory lists its box pillow as spot clean only. If you want a pillow you can put through the washing machine whole, none of the six is the answer; look for one sold as fully machine washable and check the care label.
A separate pillow protector, usually a few pounds, is the cheapest way to extend any pillow's life. It matters most on the Otty Deluxe Pure, which has no inner protector, and on the Dusk and Pillow Factory pillows, which cannot be washed at home.
Wool is a special case. Piglet in Bed does not state washing instructions on the product page we read, so if you plan to wash your pillow regularly, ask before you buy rather than assume it can go in a machine.
Wool and bamboo are about comfort and preference, not proof of better sleep
Makers describe bamboo, charcoal and wool in glowing terms: breathable, antibacterial, thermoregulating. Expert Reviews pointed out that bamboo's sustainability claims are open to dispute, and no independent source we could use has measured the antibacterial or cooling claims for these pillows, so they earn no points on their own.
What the material does tell you is how the pillow will behave. The Piglet in Bed wool pillow is the only natural filling here and the only one with an OEKO-TEX Standard 100 certificate stated by the maker, which checks the finished product for harmful substances. That certificate is a concrete reason to prefer it if you want to know what is in your bedding.
Allergies are a separate question. All six pillows are feather free. If you are allergic to dust mites, washability matters more than the filling, which again favours the foam pillows with washable covers over the spot clean pillows.
The cover fabric is easier to judge than the filling. Dusk's 100% cotton percale and Pillow Factory's 100% Egyptian cotton are both natural fabrics you can feel through a pillowcase, while Otty's Adjustable uses a cool touch synthetic. If you sleep without a pillowcase, which no maker recommends, the cover becomes the part you touch every night.
For most buyers the honest summary is that filling type matters more than the marketing words attached to it. Foam for shape, microfibre for softness and low cost, wool for a natural filling: pick the type first, then compare the pillows within it.
Paying under £15 is fine for a spare bed, but you buy blind
The Pillow Factory box pillow at £11.99 and the Dusk pair at £20 for two are the two budget routes here, and they are not equal. The Dusk pillows have an Expert Reviews verdict behind them; the Pillow Factory pillow had one customer review in the maker's shop on 14 November 2026 and no independent review.
For a guest room, where a pillow is used a few nights a year, the gap matters less, and the Pillow Factory box shape may suit visitors who sleep on their side. For your own bed, every night, the extra few pounds per pillow for the Dusk buys you a published verdict and a choice of firmness.
Below this price level we found no pillow with an independent review that was in stock, so if you want to spend less than £10 a pillow you are relying on the maker's description alone.
The same applies to pillows sold only in packs. Pillow Factory's own range includes hotel style hollowfibre pillows from £7.99 for two, but none of them had an independent review or a meaningful number of customer reviews in the maker's shop on the assessment date, so they are not in this comparison.
Size is a cost too: super king and square pillows change the price
Most pillows here come in one size, but two of them let you choose, and the price moves with it. Dusk's Feels Like Down pair costs £18 to £22 in standard size depending on firmness and £20 to £24 in super king, according to its product page, so going up a size adds £2 a pair. Piglet in Bed charges £44 to £51 for a standard wool pillow and £48 to £56 for super king.
Super king pillows are 50 x 90 cm in Dusk's range, 15 cm wider than standard. They suit a super king bed and people who like to hug the end of the pillow, but they need super king pillowcases, which most households do not have spare. On a double or king bed, two standard pillows side by side are the usual choice.
The foam pillows come in one size only. The Otty pillows are 60 x 40 cm and the Panda's size is not stated, so if you want a pillow that fills a 50 x 75 cm pillowcase edge to edge, a microfibre or wool pillow is the way to get it.
A square pillow is a different product, meant for propping up rather than sleeping. Piglet in Bed's square wool pillows start at £22, which is why its prices can look lower than they are for a bed pillow; the price on this page is for the standard medium pillow Expert Reviews would have recognised.
Firmness labels are the maker's own words, so compare the numbers behind them
Every maker uses words like soft, medium and firm, but there is no shared scale. Panda and Pillow Factory both call their pillows medium firm; Expert Reviews found the Panda firmer than the Otty Deluxe Pure, and nobody has published a verdict on the Pillow Factory box pillow. Two pillows with the same label can feel very different.
Where a maker gives a number, use it. Piglet in Bed states the wool weight for each firmness: 700 g for soft, 800 g for medium and 1,000 g for firm. That tells you the firm pillow has 43% more wool than the soft one, which is a clearer guide than the label. Height in centimetres does the same job for foam: the Otty Adjustable is 15 cm at full fill against 12 cm for the Deluxe Pure.
Reviewers' comparisons are the next best thing. Expert Reviews compared the Panda with the Otty directly, which is why we can say one is firmer than the other. Where no such comparison exists, the safest approach is to pick the medium option and rely on the trial, which is only possible with Panda and Otty among the six pillows here.
