Silentnight Plant Based 1200 Mattress Reviews (2026)

Yes—if you want a breathable, foam-free mattress that supports the hips without holding you in place. The medium surface feels cushioned but buoyant, making it especially comfortable for back and combination sleeping. Its main compromise is motion control: the pocket springs soften small movements, but they do not match the stillness of a dense foam bed. Availability is also limited, so check the seller’s stock, comfort-exchange terms, and delivery policy before ordering.

• Best fit

  • Combination sleepers who alternate between their back and side
  • Hot sleepers who want a surface that releases heat readily
  • People who prefer a medium, lightly cushioned feel with little resistance to movement

• Consider another mattress if

  • You are a strict side sleeper who needs a deep cradle around the shoulder and hip
  • You share a bed and need near-total motion isolation
  • You prefer the slow, body-hugging feel of memory foam

Nightly sleep was followed by the same repeatable checks used across our mattress reviews. We assessed support, temperature control, pressure relief, motion isolation, responsiveness, edge support, and durability. The routine combined alignment checks, a 30-minute heat test, weighted compression at the center and perimeter, a fixed-height ball drop, position changes, edge sitting, and repeated compression. These checks follow the same testing framework used for our other mattress reviews.

Our sample measured 26.5 cm deep and felt like a 6 out of 10 for firmness, which places it near the middle of our scale. On my back, the springs held my hips level while the top layers added enough cushion to avoid a board-like feel. The surface responded immediately when I rolled onto my side, so changing position took little effort. Shoulder cushioning was adequate for short periods of side sleeping, but the pressure became more noticeable over a full night than it would on a deeper foam or latex comfort layer.

Temperature control was the standout result. After 30 minutes, the surface temperature had risen 5.2°F; five minutes after I got up, it was within 1.8°F of the starting temperature. The cover also stayed dry rather than developing the warm, slightly tacky feel common to some memory foam beds.

Motion isolation was less impressive. A 10-pound ball dropped from six inches produced a visible response across the spring unit, and the vibration took an average of 1.1 seconds to settle. Normal repositioning remained manageable during shared-bed checks, but a larger turn or someone getting out of bed was easy to notice. Under the same 150-pound load, compression increased from 1.5 inches at the center to 2.2 inches near the edge. The perimeter felt secure for sitting and standing, though lying directly along it introduced a clear inward slope.

• What we liked

  • The breathable cover and open spring unit released heat quickly
  • Midsection support kept the hips from dropping during back sleep
  • The responsive medium feel made position changes easy

• Who it is best for

  • Back and combination sleepers who want steady support without a deep sink
  • Hot sleepers looking for a foam-free construction
  • Couples who value easy movement more than complete motion isolation

• Where it falls short

  • Strict side sleepers may need more cushioning at the shoulder and hip
  • Larger movements remain noticeable across the bed
  • The edge is usable but not firm enough to feel identical to the center

• Category: Pocket-spring mattress from Silentnight’s plant-based collection.
• Firmness: Medium.
• Support system: Mirapocket® pocket springs, marketed as a 1,200-spring system.
• Comfort materials: Plant-based blend of bamboo, kapok, flax, and aloe vera, plus a coir layer.
• Cover: Tencel™ Lyocell sleep surface.
• Height: 26.5 cm.
• Sizes: Single, Double, King, and Super King.
• Construction: Foam-free, tufted, and made with natural flame retardants.
• Comfort exchange: Some retailers include a 60-night trial; check the seller’s terms.
• Warranty: 5 years.
• Availability and delivery: Stock is limited, and room-of-choice delivery depends on the retailer.

Choose this mattress if you sleep on your back or change positions often and want a breathable surface with little sink. It also makes sense if you are trying to avoid foam but do not want the firmer feel common to many traditional natural-fiber mattresses. Lightweight side sleepers and anyone easily disturbed by a partner’s movement should prioritize deeper pressure relief or stronger motion isolation instead.

Two U.K. alternatives cover those trade-offs more clearly:

• Silentnight Comfort Breathe 1200: a less expensive, medium-firm pocket-spring model with a mesh border and a stronger focus on airflow.
• Sleepeezee Wool Luxe 1200: a firmer wool-and-silk pocket-spring mattress with stronger edge support and a 10-year guarantee.

The Plant Based 1200 earns its place through a specific combination: a forgiving medium feel, quick pocket-spring response, a Tencel™ Lyocell surface, and a foam-free comfort system. It is the most balanced option here for combination sleepers who want natural-derived comfort materials without moving to a firm wool mattress.

The Silentnight Comfort Breathe 1200 costs less at typical listed prices and feels slightly firmer. Its airy fiber layer and mesh border put cooling first, but it lacks the Plant Based model’s Tencel surface and bamboo, kapok, flax, and aloe comfort blend. Choose it when budget and maximum airflow matter more than a softer medium feel.

The Sleepeezee Wool Luxe 1200 sits in a similar midrange price band and uses British wool, silk, and pocket springs. It feels firm, has reinforced edge support, and carries a longer 10-year guarantee. It is the better match for dedicated back or stomach sleepers who want a sturdier surface; the Silentnight remains easier for side-to-back position changes.

• Allow at least two weeks for your body and the surface materials to settle before judging pressure relief.
• Use a breathable protector so the Tencel™ Lyocell surface can continue releasing heat and moisture.
• If you sleep mainly on your side, choose a pillow height that keeps your neck level and watch for shoulder pressure.
• Avoid a thick memory foam topper if cooling and easy movement are your main reasons for choosing this mattress.
• Rotate the mattress according to the care label to keep wear even.
• If you share the bed, place the mattress on a rigid, stable base to keep extra movement to a minimum.

Yes. The Tencel™ Lyocell surface and open spring unit released heat faster than the dense foam mattresses in our comparison, and the surface stayed relatively dry during the 30-minute heat check.

You stay mostly on top. The comfort layer adds light cushioning, but the pocket springs respond quickly and prevent a deep, slow sink.

It softens small shifts reasonably well, but larger turns and someone getting out of bed remain noticeable. Light sleepers who share a bed can find quieter options.

Yes. During back-sleep checks, the spring unit kept the hips level while the comfort layer reduced pressure around the lower back.