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Sealy Dreamworld Alder Ultimate Support Mattress

Sealy Dreamworld Alder Ultimate Support Mattress

From £399.00RRP £519.00
Free delivery over 30
Non Turn Non Turn
Pocket Springs Pocket Springs

Things to Consider

Sealy Dreamworld Alder Ultimate Support Mattress

The Dreamworld Alder Ultimate Support Mattress from Sealy features a supportive spring system that is ideal if you suffer from aches and pains, ensuring a restful night’s sleep.

This mattress has been designed with a 620 PostureTech Spring System, which provides a softer feel that gradually gets firmer as pressure increases, without compromising on comfort. The springs are twice tempered, providing greater resilience and extends the life of your mattress even more.

The mattress also features 7 Zoned Support, which correctly supports and aligns the spine in its natural shape, helping to reduce aches and pains.

A dust-free white fibre filling has been added to the mattress for extra softness and resilience. Also, a high-density foam strip has been placed inside the edge of the mattress springs, preventing the mattress from sagging and offering a more supportive sleeping surface.

This mattress has also been designed with adaptive technology, which dynamically responds to temperature changes throughout the night to help to keep you comfortable by absorbing excess body heat when you get too hot. The mattress will then release this heat back into the environment when you cool down, ensuring a restful night’s sleep.

The Purotex Fibre Cover is a 100% natural solution that releases friendly bacteria while you sleep, combating the most common allergy triggers, such as dust mites.

There is no need to turn this mattress, but regular rotation from head to toe will extend the mattress's lifespan.


  • Mattress Depth: 25cm
  • Mattress Tension: Firm
  • Approved by Allergy UK
  • Hand-Tufted for a secure, perfect finish
  • Flag-Stitched Handles on both sides for ease of moving and positioning


Single 90cm x 190cm
Small Double 120cm x 190cm
Double 135cm x 190cm
King Size 150cm x 200cm
Superking 180cm x 200cm

Free Delivery to Mainland UK only

Your mattress will be delivered within 5 weeks.

Please include your telephone number with your order as the delivery driver will call to arrange a convenient delivery time with you. Delivery will be Monday - Friday.

Delivery is also available in Northern Ireland with a delivery charge of £25.00.

Please contact us for delivery surcharges and lead times for the Scottish Highlands (AB  IV  KW  PA  PH), Scottish Isles and Scilly Isles, the Isle of Wight, Isle of Man, Channel Islands and the Republic of Ireland.

Supplier Dispatch Item

This product is made to order and will be dispatched directly from our supplier to you.

Thinking of buying a new bed or mattress?

Read our handy guide for things to consider before making your purchase…

Bed buying guide

Made to order item

This item is made to order. Made to order items can not be cancelled and can not be returned. Please view our delivery and returns page for further information.

Delivery and returns information

As this item is made to order it is delivered direct to you from our supplier within 5 weeks. Our supplier and/or their nominated courier provider will be in touch with you to arrange a suitable delivery date.


Your mattress will develop natural settlement of it's fillings as they 'mould' to fit your shape, this is completely normal. Find out more here about mattress settlement and care of your mattress.

Your Guide To Mattress Settlement

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