The Sealy Newton Posturepedic is a 27cm firm coil spring mattress with a latex ComfortCore, made exclusively for Bensons for Beds.
The Sealy Newton Posturepedic is a 27cm no-turn coil spring mattress with a latex ComfortCore and two layers of extra-firm foam, made in Britain exclusively for Bensons for Beds. It comes in a firm and a medium comfort rating at the same price and carries a 10-year guarantee.
The Newton page at Bensons for Beds lists the full build. Sealy designed it with the International Orthopaedic Advisory Board, a panel of orthopaedic surgeons, biomechanical engineers and medical scientists.
| Component | Specification |
|---|---|
| Spring unit | AlignSupport coil, twice tempered |
| Edge | UniCased edge support with interlocking keys |
| Foundation | BasePlank |
| Centre third | Latex ComfortCore under the hips and lower back |
| Comfort layers | Double layer of Sealy extra-firm foam |
| Cover | Quilted stretch-knit with SmarTex and ProShield fibres |
| Depth | 27cm, no-turn |
At the time of writing (September 2026), Bensons charges the same for the firm and the medium version.
| UK size | Dimensions (cm) | Price at Bensons for Beds |
|---|---|---|
| Single | 90 x 190 | £1,299.99 |
| Double | 135 x 190 | £1,499.99 |
| King | 150 x 200 | £1,699.99 |
| Super king | 180 x 200 | £2,099.99 |
That is well above the £543 mean price paid for a new mattress in the 18th National Bed Federation consumer survey, so the Newton is a premium choice in a coil spring format.
Ideal Home’s review of the Newton scored it 4.5 out of 5 across ten criteria. Its tester, Rachel Tompkins, who has lower back and hip pain, wrote: “Whilst it took me a while to adjust its firmer sleep surface I soon found that its hybrid latex and coil spring design helped to reduce my lower back ache compared to the memory foam mattress I had previously been sleeping on.” The same review lists open coil springs, latex and foam as the construction, and names lighter side sleepers as the group most likely to find it too firm.
We rate the firm version 7 out of 10. Back and front sleepers are the best fit. If you are unsure, the medium version is the safer choice: a randomised trial of 313 adults published in The Lancet (Kovacs et al., 2003) found medium-firm mattresses gave better results for chronic low-back pain than firm ones after 90 days.
Bensons offers a 40-night comfort guarantee: after at least 5 nights, and provided you used a mattress protector, it will exchange the mattress, with charges. The 10-year guarantee applies to the Sealy Posturepedic mattresses Bensons sells. Delivery is to the room of your choice, from 7 days, for £49. Bensons and Sealy both describe the ProShield cover as endorsed by Allergy UK; the Newton itself is not named on the Allergy UK listing for Sealy, so we do not show the seal here.
| Marke | Sealy |
|---|---|
| Material | AlignSupport twice-tempered coil spring unit with UniCased edge support and BasePlank, latex ComfortCore in the centre third, double layer of Sealy extra-firm foam. Quilted stretch-knit cover with SmarTex and ProShield. |
| Hergestellt in | United Kingdom |
| Härtegrad | Fest (7/10) |
| Höhe | 27 cm |
| Probeschlaf | 40 Nächte |
| Garantie | 10 Jahre |
| Lieferung | Room-of-choice delivery, from 7 days |
| Verfügbare Größen | 90x190, 135x190, 150x200, 180x200 |
| Gesamtscore | 7.6/10 |
„We recommend the Newton to back and front sleepers who want a firm, no-turn spring mattress with latex pressure relief and a 10-year guarantee. At Bensons' current prices it is expensive for a coil spring build, so compare it with the Elevate Blackwood before you buy.“
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