Free delivery on orders over £100
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Silentnight Geltex Ultra 4000 Boxtop Mattress


  • Expected Delivery Time

  • Free delivery
  • Delivery time based on postcode. Min. Spend £100
  • 0% Finance Available

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  • Made exclusively for Bensons for Beds
  • Features Silentnight Geltex™ Layer for a cooler sleep & easy movement
  • Superior triple layer of 3000 Zoned Mirapocket springs
  • 1000 layer of responsive Ultra Mini-Springs
  • Hand tufted for a traditional sleep surface with a deluxe Boxtop
  • Firmness Rating: Medium
  • Easy care non-turn mattress, simply rotate
  • Handcrafted in the UK
  • Mattress Height: 38cm
  • 5-year guarantee

Introducing the Silentnight Geltex 4000 Pocket Boxtop Ultra. Discover the unique bounce back and breathability of Geltex™ technology combined with layers of zoned springs for maximum support and comfort.

Featuring Silentnight's exclusive Geltex™ layer which actively responds to your body as you sleep, for easy movement and 'bounce-back' to help you feel energised, every morning. Geltex™ is also incredibly breathable, allowing for a cooler night's sleep every night.

The Geltex 4000 Pocket Boxtop Ultra combines a layer of 1000 Ultraflex mini-springs for enhanced comfort and support, alongside Silentnight's exclusive Mirapocket® spring system. A triple layer of 2000 individual pocket springs and additional 1000 mini-springs respond independently to weight and deliver tailored support where you need it most. The 1000 Mini-Springs and the Geltex™ layers are combined in a deep Boxtop for the ultimate deluxe mattress, which is hand tufted for a firmer feel.


Free Delivery

Bensons for Beds offer free delivery* on all orders over £100 - we’ll even deliver it to a room of your choice. If you would prefer a doorstep delivery, we are happy to offer this for you also.

Our team take every care delivering your new product, but we recommend moving any valuables such as vases or paintings out of the delivery path. Should you have any concerns about your furniture fitting in your house, you can view our home measuring guide here for advice on how to measure up prior to delivery.

Please be aware that our Standard Delivery times are Monday to Friday between 7am and 6pm depending on your location within the UK. You will receive a call from our Customer Services team to confirm your preferred time slot.

*A delivery charge of £4.99 applies on orders under £100.

Divan Bed Assembly Service

For a small charge of £20, our delivery team will assemble your divan bed plus headboard (if purchased and delivered with the divan bed). We'll also clear away all unwanted packaging and recycle it to ensure you're ready for a good night's sleep.

Currently, only divan beds are included in our assembly service. For further advice regarding our assembly services, please speak to our Web Admin team on 0808 144 6160 or email