Best Small Double Mattress 2026: 10 Ranked, Coil Counts Compared

Vesgantti tops this list on cover, not on coils. The spec table logs 390 pocket coils in a 120x190cm frame and 26cm of depth, against a 4.6 average from 5,252 ratings — 77% of them five stars. However, it is also the priciest small double mattress here at £214.99, £75 more than the 700-coil dosleeps at 22cm.

The build is a 7-zone pocket spring unit under memory foam, boxed and vacuum-sealed at 26.7kg. Crucially, that weight matters: a 26cm hybrid is not a mattress you turn alone, and Vesgantti's care instructions say hand wash only for the cover — not something most buyers will ever do.

Don't buy this if price leads your decision. It costs £106 more than the SZsuilong at 28cm, and the listing gives thickness as both 26cm and 10.3 inches (26.2cm). The 10-year warranty and the 100-night trial are the real reasons it sits first.

TeQsli takes second on one number: 522 pocket coils for £129.19. That is more coils than the £214.99 Vesgantti and roughly £0.25 per coil. Meanwhile the 600lb (272kg) maximum weight is the highest capacity stated anywhere in this list.

The 25cm hybrid packs a 7-zone pocket spring unit, cooling memory foam and 3D mesh side panels into 22kg. In practice, that 12-layer count in the spec is marketing — the fill material field names five things: pocket springs, cotton felt, high density foam, memory foam and non-woven fabric.

That said, the review profile is mixed. Of 1,967 ratings, six are one star and three are two stars. There is no trial period and no warranty length in the listing either, which the Vesgantti and both dosleeps models do state. If you want the most spring per pound, this small double hybrid mattress is still the value pick.

Third place goes to the 25cm dosleeps, which logs 550 pocket coils across 9 zones and 3,524 ratings at 4.4 — the second-largest review base here. As a small double pocket sprung mattress goes, that is a lot of spring for £139.99.

The build pairs gel memory foam with individually wrapped coils, a Tencel cover and a 3D mesh side panel, at 21.7kg. The brand claims the foam cuts pressure on neck, spine and hips by up to 87%. Worth noting: that is a manufacturer figure, not a test result, and nothing in the listing explains how it was measured.

By contrast, the internal numbers are messy. The same spec table gives the depth as 24cm, the thickness as 10 inches (25.4cm) and the size as 120x190x25cm. Nine of its 3,524 ratings are two stars or lower, and no warranty length appears anywhere in the listing.

Fourth on the highest coil count anywhere in this shortlist: 700 pocket springs, in the 22cm dosleeps at £139.99. It also carries the best rating of the three dosleeps entries — 4.5 from 784 ratings, 78% at five stars.

The 9-zone design uses the same gel memory foam and 3D breathable fabric as its 25cm sibling, but 3cm thinner and 20kg rather than 21.7kg. Curiously, the thicker mattress claims 550 coils and this thinner one claims 700 — a 27% jump that no part of either listing explains.

Even so, this is the thinnest of the three dosleeps models, and 784 ratings is the smallest sample in the top five. It repeats the same 12-layer line with no breakdown, and no warranty period. Buy it for the spring count and the 100-night trial, not for depth.

Fifth for consistency: 4.6 from 2,472 ratings, 77% at five stars, and £138.69 for a 26cm hybrid. If you want a small double memory foam mattress with springs behind it, this is the same depth as the £214.99 top pick for £76 less.

Inofia builds a memory foam and pocket spring hybrid with a Euro Top finish, reinforced edge coils and a SmartAir knitted cover certified to BS7177 for fire resistance. The foam carries EuroPUR and CertiPUR-US certification. At 22.7kg it is lighter than the Vesgantti despite matching it for depth.

The catch is the paperwork. This is one of three listings here that publishes no coil count at all, so the support cannot be compared. Firmness is listed as Firm, Medium in the spec and Medium Firm in the highlight. Two bullets also refer to a king mattress, which suggests copy carried over from another size.

Sixth on depth: 27cm, the third-thickest here, for £153.69. That is the most expensive dosleeps in this list and £14 more than the 25cm version, yet the listing publishes no coil count at all.

If you specifically want a small double mattress medium firm in feel, the spec says medium firm and the top layer is gel memory foam over 9-zone pocket springs. The cover is a 3D breathable quilted knit, and the whole thing weighs 22kg — lighter than the 26cm Vesgantti, despite being 1cm deeper.

That said, £153.69 buys nothing measurable that the £139.99 dosleeps does not also claim. Eight of its 2,686 ratings are one star. The 12-layer figure appears again with no itemised breakdown, so treat it as a label rather than a specification.

Seventh for a reason that has nothing to do with comfort: Suilong's own spec table gives the dimensions as 28 x 200 x 28cm, while the title and the size field both say 120 x 190 x 30cm. A 200cm length is not a 4ft small double. As a result, the one measurement you need before ordering is the one the listing gets wrong.

In theory this is the most mattress here: 30cm deep, 30.5kg, a 250kg weight capacity and a 7-zone pocket spring unit under gel memory foam. It rates 4.6 from 585 ratings, 79% of them five stars, and there is a 100-night trial.

The catch is weight and sample size. At 30.5kg it is the heaviest mattress in this list — impractical to rotate alone, which the care instructions ask you to do seasonally. And 585 ratings is a small base next to the 5,252 of the top pick. Buy it if you need the depth; measure your frame first.

Eighth for value at depth: £106.24 buys a 28cm hybrid, 2cm more than the £214.99 top pick at roughly half the price. This 4ft small double mattress is also the second-cheapest entry here, behind only the £84.99 BEDZONLINE.

It uses 7-zone carbon steel pocket springs with a wave foam breathable layer and a vintage embroidered jacquard cover, at 19.2kg. That is light for a 28cm hybrid and manageable for one person to move on their own. The rating is 4.5, with 81% of 256 ratings at five stars.

Even so, 256 ratings is the smallest review base in this list, and seven of them are one star. The spec line also reads 28L x 120W x 190Th, which swaps length and thickness. No coil count is published, so the 7-zone claim cannot be checked.

Ninth, and the cleanest example of why coil counts cannot be trusted. Twirest's spec sheet logs 7 mattress coils for a 7-zone unit — one coil per zone. It sits among listings quoting 390, 550 and 700 in the same 120x190cm frame. Which means the figure is a data-entry placeholder, not a spring count.

The numbers that are consistent look better. Twirest rates 4.8, the highest average here, on a 22cm hybrid with a 250kg capacity and 21kg of weight. The 7-zone inner spring unit is designed to spread weight, and the cover is listed as breathable and hypoallergenic.

That said, 4.8 comes from 162 ratings — by far the smallest sample in this shortlist. The fill material field names high density foam only, with no memory foam, despite the hybrid label. No trial period and no warranty length appear in the listing. If a small double mattress 120x190 with a high score appeals, ask what those 7 coils actually are.