About OTTY#

OTTY (One Thousand Tiny Years, a reference to the number of springs in their mattress) is a British direct-to-consumer mattress brand that launched in 2015. The brand positions itself as a premium hybrid alternative at mid-range pricing, targeting buyers who want the benefits of a multi-layer hybrid without paying Simba or Brook + Wilde prices. OTTY offers a 100-night trial and a 10-year guarantee.

OTTY Original Hybrid: construction#

The OTTY Original is a four-layer hybrid mattress approximately 25 cm deep:

  • Cooling cover: A bamboo-blend knitted cover with a cooling-to-the-touch feel. A nice quality touch.
  • Gel memory foam comfort layer (5 cm): A generous 5 cm gel-memory foam layer provides pressure relief and contouring. The gel infusion improves temperature performance over standard memory foam.
  • 1,000 pocket springs (10 cm): The spring core provides structural support, edge support and airflow. 1,000 springs in a UK double is a reasonable spring count for a mid-range hybrid.
  • Base foam (10 cm): A firm support base beneath the springs.

Firmness and feel#

OTTY rates the Original as medium-firm, and most sleepers at average weight agree with this assessment. The surface feel is memory foam, the gel-foam layer gives a noticeable contouring sensation, but with more underlying support and pushback than an all-foam mattress due to the pocket springs beneath. It is well-suited to back sleepers and heavier side sleepers who need more support than softer hybrids provide.

Performance for heavier sleepers#

OTTY's medium-firm designation and 5 cm gel-foam comfort layer make it particularly well-suited to heavier sleepers (over 14 stone / 90 kg). The gel foam layer is substantial enough to provide genuine pressure relief even when compressed by additional weight, and the pocket spring base maintains adequate support. OTTY is one of our recommended hybrids for heavier UK sleepers who don't want to pay premium prices.

Temperature performance#

Better than all-foam due to the pocket spring airflow layer. The gel-foam top layer also helps with temperature management. The bamboo-blend cover is notably breathable. Overall, a solid performer for temperature regulation at its price point.

Who OTTY suits#

  • Best for: Back sleepers, medium-weight to heavier side sleepers wanting pressure relief with good support, value-conscious buyers wanting a genuine hybrid, those wanting a cooling hybrid under £700
  • Less suitable for: Very light sleepers who may find medium-firm too firm, those who want the deepest memory foam contouring, combination sleepers who prefer a highly responsive feel

Our verdict#

OTTY delivers a genuinely good hybrid at a price that undercuts most competitors with similar specifications. The 5 cm gel-foam comfort layer is more generous than some more expensive brands, and the overall construction quality is high. It's particularly compelling for heavier sleepers or back sleepers who want support and temperature regulation without breaking the bank.

From the shop floor#

OTTY earned a following among heavier sleepers for a reason we saw over and over: most online hybrids are medium, and a medium hybrid under a 17-stone body is a soft one. OTTY built firmer, and the customers who had returned two medium mattresses in a row finally kept one. If you are over about 15 stone and every mattress you try feels like it is giving up under you, a firmer hybrid like this is the category to shop in, whichever brand you end up with.

The flip side is that OTTY's firmness catches out lighter side sleepers, who find the shoulder pressure too much. Read the firmness as medium-firm to firm, not the universal medium most online brands sell, and choose accordingly.

How OTTY compares with the mattresses we have scored#

OTTY's Original Hybrid is a medium-firm to firm pocket-spring hybrid with cooling gel foam, pitched at back sleepers and heavier sleepers. These are the catalogue mattresses that compete for the same buyer.

ModelTypeDepthFeelSupportComfortPrice (double)Where it fits
Luxe OrthoSupport9 FoamFoam23cmFirm8.97.6£410 (sale)Firm foam with an active cooling layer, £410
Imperial 2000 Pocket SpringPocket spring29cmFirm8.77.8£449Firm, natural fibres, no foam to soften
LuxeErgo 3400 HybridHybrid31cmFirm9.09.0£464 (sale)Firm hybrid with 9.0 for both support and comfort
Emma Original ProHybrid25cmMedium-firm9.08.8£699Medium-firm zoned hybrid, 200-night trial

Prices are for a double at the time of writing (September 2026), using the sale price where the brand runs a permanent one. Full scores are on each review page. We may earn a commission if you buy through our links, at no extra cost to you; it never affects a score.

LuxeErgo 3400 Hybrid is the mattress to put beside OTTY: firm, 31cm deep, dual-layer zoned springs, and the only firm mattress we list that also scores 9.0 for comfort. For heavier sleepers it is our first recommendation. Our Foam People vs OTTY and Luxe vs OTTY comparisons cover the budget and like-for-like routes.

Frequently asked questions#

Is the OTTY mattress firm?#

Medium-firm to firm, noticeably firmer than the medium most online brands sell. That suits back sleepers, front sleepers and anyone over about 15 stone; lighter side sleepers may find it too firm at the shoulder.

Is OTTY good for heavy people?#

Yes; it is one of the online hybrids most often recommended for heavier sleepers, because its firmer springs and denser foams resist sinking. Deep firm hybrids such as the LuxeErgo 3400 compete directly.

Does the OTTY mattress sleep cool?#

Cooler than all-foam mattresses, thanks to the spring layer and gel-infused foam. It is not a dedicated cooling mattress; hot sleepers who also want firm support should compare it with the Luxe OrthoSupport9.

What is the OTTY trial and warranty?#

Typically a 100-night trial and 10-year warranty, sold direct online. Check the current terms at purchase, including who arranges collection on a return.