Sleepeezee Ortho Firm 1600 Mattress
The Sleepeezee Ortho Firm 1600 is a pocket spring mattress described by Sleepeezee as extra firm, so it sits at the very solid end of the scale.
- Firm support without sinking in
- Eases pressure at hips & shoulders
- Double-sided to help it last
£499
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The Sleepeezee Ortho Firm 1600 uses up to 1600 pocket springs that move independently, which means support follows you as you change position rather than the whole surface tilting. Layers of cotton and polyester fibre soften the surface without diluting that firm feel, and the mattress is double-sided, so you can flip it to even out wear. At 28cm deep, it comes in five UK sizes from Single to Super King. If you want a genuinely firm bed rather than a medium dressed up as one, this is that kind of mattress.
Mattress specifications
Firmness
Firm
Type
Pocket Spring
Depth (cm)
28
Number of Layers
6
Trial Period (nights)
Warranty (years)
10
Price Range
£499 to £899
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Certifications
BS 7177
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
This mattress is built for people who actively want firmness, whether that's a personal preference or a back that complains on softer beds. The pocket springs contour to your body individually, which means pressure relief at your hips and shoulders without the sinking feeling you may dislike if you prefer sleeping on a firm mattress. High-density support layers sit on both sides, so flipping it regularly should help it last, and the retailer listing states a Sleepeezee 10-year guarantee for reassurance. A breathable Belgian damask cover and a cotton filling layer help regulate temperature, useful if you tend to run warm. It has a mid-range starting price, but a double-sided, 28cm-deep pocket spring build goes some way to justifying it.
Key features & layer details
Damask Cover
A breathable Belgian damask fabric cover. It lets air move through the surface, which means less heat building up around you overnight.
Comfort Layer
A generous polyester and cotton blend layer that cushions your body. It softens the surface slightly without compromising the firm feel underneath.
Soft White Fibres
Fibre fillings made from 100% polyester. These recover their shape well, which means the comfort layers should resist flattening over time.
Cotton
A natural filling that helps regulate body temperature. It also adds a touch of extra support and comfort.
Pocket Springs
Up to 1600 pocket springs that work independently, contouring to your body as you move. That means targeted pressure relief where you need it, and less disturbance from a partner shifting about.
High-density Support Layers
Dense support layers on both sides of this double-sided mattress. They add further pressure relief and let you flip the mattress to spread the wear.
Layer details from mattressnextday.co.uk product page, September 2026.
Best suited for?
Back sleepers
Up to 1600 pocket springs move independently and keep the firm surface supportive as you shift, so your body stays level without the bed tilting.
Warm sleepers
A breathable Belgian damask cover and a cotton filling layer let air move through the surface, which means less heat building up overnight.
Couples
Independently working pocket springs mean less disturbance from a partner shifting about, and the range runs from Single to Super King.
Heavier sleepers
High-density support layers on both sides sit beneath the springs, giving a firm, dependable feel that resists the sinking sensation on softer beds.
Combination sleepers
Because each spring works on its own, support follows you as you change position rather than the whole surface tilting.
This is described as extra firm, so lightweight sleepers and dedicated side sleepers will likely find it too hard, with pressure building at the shoulder and hip. If you like a plush, sink-in surface, look elsewhere. It's also double-sided, so you'll need to be able to flip it regularly.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Sleepeezee Ortho Firm 1600 Mattress
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FAQ's
How firm is the Sleepeezee Ortho Firm 1600 mattress?
Sleepeezee describes it as extra firm, so expect a very solid, supportive surface. The cotton and polyester comfort layers add a little surface cushioning, but this is a mattress for people who genuinely prefer a firm feel, particularly back and front sleepers.
Does the Sleepeezee Ortho Firm 1600 have a guarantee?
The MattressNextDay listing states a Sleepeezee 10-year guarantee. No trial period is mentioned on that page, so check the returns terms with whichever retailer you buy from before ordering.
How many springs does the Sleepeezee Ortho Firm 1600 have?
The retailer listing describes up to 1600 pocket springs, and lists 1600 in the specifications. Each spring moves independently, which means support adjusts to your body shape and movement rather than the whole surface responding as one.
Do you need to flip the Sleepeezee Ortho Firm 1600?
Yes, it's a double-sided mattress with high-density support layers on both sides. Flipping it regularly spreads the wear across both surfaces, which should help it keep its feel for longer. Bear in mind it's a 28cm-deep mattress, so flipping is a two-person job for most.
What sizes does the Sleepeezee Ortho Firm 1600 come in?
Five UK sizes: Single, Small Double, Double, King and Super King.
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