Silentnight Plant Based Box Top 1800 Double Mattress
Silentnight

Silentnight Plant Based Box Top 1800 Double Mattress

The Silentnight Plant Based Box Top 1800 is a medium feel pocket spring mattress with a plant based comfort layer made from bamboo, kapok, flax and aloe vera.

  • Plant-based natural comfort layers
  • Minimises partner disturbance
  • 60-night trial & 5-year guarantee

£799

Size: Double. Available at Silentnight

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Where can I buy the Silentnight Plant Based Box Top 1800 Double Mattress?

Below are the best prices for the Silentnight Plant Based Box Top 1800 Mattress in a Double. Available from (9) trusted retailers.

Silentnight Plant Based Box Top 1800 Mattress

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Prices last checked:
11th November 2026

Mattress dimensions for the Silentnight Plant Based Box Top 1800 Double Mattress

Length: 190cm

Width: 135cm

(4ft 6in x 6ft 3in)

Minimum room size: 2.6m x 2.8m

Mattress details

Mattress Details for the Silentnight Plant Based Box Top 1800 Double Mattress

Mattress

Silentnight Plant Based Box Top 1800 Mattress

Size

UK Double (4ft 6in x 6ft 3in)

Firmness

Medium

Construction

  • Foam

  • Pocket Spring

  • Memory Foam

Depth (cm)

31

Layers

4

Layer Details

Tencel™ Lyocell sleep surface
A silky, soft touch top layer woven to allow airflow and carry moisture away from you as you sleep. In practice, that means a cooler, drier feel through the night.

Platinum comfort layer
Silentnight says this layer is ten times more breathable than memory foam while offering the same pressure relief. You get that cocooning, contouring feel with less of the heat build-up memory foam is known for.

Plant Based Comfort Layer
A cushioning layer made from a combination of bamboo, kapok, flax and aloe vera, which Silentnight says is sustainably sourced. This is where the mattress gets its plant based name and much of its soft, breathable character.

Mirapocket® springs and mini springs
800 Mirapocket springs adjust to your movements through the night, combined with 1000 mini springs for extra comfort and breathability. Each spring works independently, which means better isolation of movement between you and a partner.

Layer details from silentnight.co.uk product page, September 2026.

Key benefits

Key Benefits of the Silentnight Plant Based Box Top 1800 Double Mattress

Who should buy the Silentnight Plant Based Box Top 1800 Double Mattress?

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FAQ's

Frequently Asked Questions About the UK Double