Pillow height, known in the trade as loft, has one job: filling the gap between the head and the mattress so the neck stays in line with the rest of the spine. Side sleepers need the most height because the shoulder holds the head furthest from the surface, back sleepers need a medium loft, and front sleepers need very little or none. Persistent neck pain should be discussed with a doctor or physiotherapist.
Why Loft Matters More Than Softness
Most people choose a pillow by squeezing it, which tests the wrong property. Softness describes how the surface feels against the cheek; loft describes how far the head is held above the mattress, and that is what determines the angle of the neck for seven or eight hours.
The neck is simply the top of the spine, so what applies to the lower back applies here too. Where the pillow is too low, the head drops towards the mattress and the neck bends downward; where it is too high, the head is pushed upward and the neck bends the other way. Either position holds soft tissue in a stretched or shortened state all night, and the result is usually felt on waking rather than at the time.
The cervical spine, meaning the seven vertebrae running from the base of the skull to the shoulders, carries a natural forward curve that a pillow has to accommodate rather than flatten. That is what the term cervical support describes when it appears on packaging, and it is why sleep posture is worth as much attention as the softness of the surface against the cheek.
A systematic review of 39 studies published in the Journal of Orthopaedics and Traumatology found that support which maintains correct spinal alignment is consistently associated with better comfort and rest. Pillows are the part of that system people replace most casually and measure least.
How Sleeping Position Sets the Height
The gap to be filled is a matter of body geometry rather than preference.
Side sleepers
Lying on one side puts the head at its furthest point from the mattress, roughly the width of the shoulder. That demands a high loft, and a pillow that is too flat lets the head fall towards the lower shoulder, bending the neck sideways. Broader shoulders need more height still, which is why two people in the same bed often need different pillows.
Back sleepers
Lying flat leaves a much smaller gap, consisting of the natural hollow at the back of the neck. Medium loft fills it without pushing the head forward. A common error here is using a side sleeper's pillow out of habit, which tips the chin towards the chest.
Front sleepers
Resting face down means the head is already close to the surface, and any meaningful loft turns the neck upward and to one side at once. A very flat pillow or none at all is the usual recommendation, and some front sleepers do better placing a thin pillow under the hips instead.
|
Position |
Loft needed |
Common mistake |
|---|---|---|
|
Side |
High, roughly shoulder width |
A flat pillow letting the head drop |
|
Back |
Medium |
Reusing a high side-sleeping pillow |
|
Front |
Very low or none |
Any pillow that lifts the head |
|
Combination |
Medium, or an adjustable fill |
One pillow optimised for a single position |
Suggested image: side-view diagram showing neck alignment with a low, correct and high pillow for a side sleeper. Alt text: "Diagram comparing neck alignment with low, correct and high pillow heights for a side sleeper".
Checking the Fit
The test takes a minute and needs a second person or a mirror. Lying in the normal sleeping position with the usual pillow, the line of the neck should continue the line of the spine, with the nose pointing straight ahead rather than tilted up or down, and the chin neither tucked towards the chest nor lifted away from it.
For side sleeping specifically, the head should sit level, so that an imaginary line through the eyes stays parallel to the mattress. Where the head tips downward towards the lower shoulder, the pillow is too low; where it tips upward, it is too high.
Why Two Pillows Usually Causes Problems
Stacking pillows is the most common homemade fix for a loft that feels too low, and it rarely works well. Two pillows together create a height suited to almost nobody and a sloped surface that pushes the head forward rather than supporting it level, so the neck ends up flexed for the whole night.
The surfaces also slide against each other, meaning the support changes whenever the sleeper moves. A single pillow of the correct loft is more stable and more comfortable than any arrangement of two, and it is also cheaper than the back-and-forth of trying combinations.
Filling Materials and Height Retention
What a pillow is filled with determines whether it holds its loft all night and across the years.
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Memory foam holds its shape consistently and returns to the same height every night, which suits anyone who needs a reliable loft. It retains warmth, which matters in Cyprus.
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Latex is springier and more breathable than foam while still holding its height well, so it suits warm sleepers who want consistency.
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HR foam sits between the two, offering support with more responsiveness than memory foam.
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Polyester fibre is light and inexpensive but compresses through the night and flattens over months, so the loft at bedtime is not the loft at four in the morning.
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Adjustable fills, where material can be added or removed, let a sleeper tune the height rather than guess it. An adjustable pillow is the most forgiving choice for anyone who has already tried two or three heights without settling.
A contoured or cervical pillow, shaped with a raised edge to sit under the neck and a lower centre for the head, is designed around that forward curve rather than left flat. Some sleepers find the shape settles the neck immediately; others never adjust to it, which is why trying one before committing matters more here than with a conventional shape.
Stroma's pillow range covers latex, memory foam, HR foam, watergel, polyester and wedge options, which is the practical reason to try a few rather than order by description.
Heat and the Cyprus Summer
A pillow sits against the head and neck, where the body loses a good deal of heat, so material choice is felt more here than almost anywhere else in the bed. Dense memory foam insulates, which is comfortable in winter and less so in July.
The scale is worth stating. The Department of Meteorology recorded an average maximum of 38.6°C at the Athalassa station in Nicosia during July 2026, with a peak of 43.2°C on 23 July, as reported by the Cyprus Mail, and nights stay warm through midsummer. Latex, open-cell foams and breathable pillowcases in natural fibres all help; a dense foam pillow under a synthetic case is the combination most likely to be regretted.
How the Mattress Changes the Pillow
The two work as a pair, which is why replacing one often makes the other feel wrong. A softer mattress lets the shoulder sink further, reducing the gap the pillow has to fill, so a side sleeper moving to a softer surface often needs a lower loft than before. Moving to a firmer mattress has the opposite effect, as the shoulder stays higher and the gap grows.
Anyone who has recently changed their mattress and started waking with a stiff neck should look at the pillow before concluding the new sleep surface is at fault.
When to Replace a Pillow
A pillow that no longer returns to its shape in the morning has stopped doing its job, whatever it looks like. The simple check for a fibre pillow is to fold it in half and let go: one that stays folded has lost its structure. Foam and latex pillows hold their height far longer but develop a permanent hollow where the head rests, which is visible when the pillow is laid flat and viewed from the side.
Washing cases weekly and airing the pillow itself regularly extends its life, and a protector under the case keeps moisture and oils away from the filling.
Where Stroma Fits
Stroma has manufactured sleep products in Cyprus since 1994 and makes pillows alongside mattresses, which means loft can be matched to the surface rather than guessed separately. The range spans latex, memory foam, HR foam, watergel, polyester, wedge and the Comforello line, in different heights.
Pillows are difficult to judge from a description, and the showroom test described above takes a couple of minutes. Visitors to the Nicosia, Limassol or Paphos showrooms can lie on a mattress of similar firmness to their own and try several heights against it, which is the only reliable way to settle loft. Browse the pillow collection first, consider a mattress topper if the surface itself is part of the problem, and visit the Paphos showroom on Mesogis Avenue or the Nicosia store to compare.
Anyone whose neck discomfort is persistent, severe or accompanied by other symptoms should speak to a doctor or physiotherapist rather than treating it as a bedding question.
Frequently Asked Questions
How high should a pillow be?
High enough to fill the gap between the head and the mattress so the neck continues the line of the spine. Side sleepers need roughly shoulder width, back sleepers need a medium loft filling the hollow at the neck, and front sleepers need very little or no height at all.
What loft suits a side sleeper?
A high loft, because the shoulder holds the head furthest from the surface. Broader shoulders need more height, and a firmer mattress increases the gap further by letting the shoulder sink less. The check is whether the head sits level rather than tipping towards the lower shoulder.
Can using two pillows cause neck strain?
Stacking two creates a height that suits almost nobody and a sloped surface that pushes the head forward, leaving the neck flexed for hours. The layers also slide apart during the night, so support changes with movement. One pillow at the correct loft is more stable and usually cheaper.
Which filling holds its height best?
Latex and memory foam hold loft most consistently, returning to the same height nightly, with latex breathing more freely. HR foam sits between them. Polyester fibre compresses through the night and flattens within months, so the height at bedtime is not the height by morning.
When does a pillow need replacing?
When it no longer returns to shape. A fibre pillow folded in half should spring open; one that stays folded has lost its structure. Foam and latex versions last longer but develop a permanent hollow where the head rests, visible when the pillow is laid flat and viewed from the side.
Sources used
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Journal of Orthopaedics and Traumatology, systematic review of 39 studies: support, spinal alignment and sleep comfort.
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Cyprus Department of Meteorology figures reported by the Cyprus Mail: July 2026 temperatures at the Athalassa station, Nicosia.
