Somnior
Sovereign 3500 Pressure Relief Cushioned Support Mattress Medium Firm
“Refund was approved and back in my account the same day.” - Deliver+ customer
The 3500 Sovereign Mattress offers a medium firm feel with an approximate depth of 29cm, delivering a premium sleep experience with noticeable quality from the very first night. Crafted using a high count of individually fabric-encased pocket springs, this mattress features a substantial memory foam comfort layer combined with supportive reflex foam and enhanced edge support, all finished in a quilted cashmere soft-touch knitted fabric padded with polyester for a more plush, cushioned feel. The memory foam gently contours to your body, helping relieve pressure and provide a comfortable, supportive surface, while reflex foam adds responsive rebound to support healthy spinal alignment. The quilted polyester padding creates a smoother, more inviting sleep surface and encourages airflow, helping regulate temperature more effectively than traditional tufted designs. Individually working pocket springs respond to your body weight to target pressure across 7 key areas, supporting back, side, and combination sleepers while absorbing noise and vibration to minimise disturbance from partners or pets. Hypoallergenic and allergen-free, this fire-retardant mattress is manufactured in the UK to meet British safety and quality standards. Single-sided mattress; rotating periodically helps the mattress settle evenly and maintain consistent comfort across the full sleep surface.
DELIVERY: Delivered to the room of choice. Delivery Date and time slot is agreed directly with you by the courier prior to delivery. Available in the following sizes, mattress depth 29cm/11.4” all sizes. 3FT Single Mattress W 92 cm x L 193 cm, 4FT Small Double Mattress W 123 cm x L 193 cm, 4FT6 Double Mattress W 137 cm x L 193 cm, 5FT King Mattress W 153 cm x L 203 cm, 6FT Super King Mattress W 183 cm x L 203 cm. Dry Clean Only.
For hygiene reasons, we cannot offer returns or refunds on fashion face masks, cosmetics (including beauty products), pierced jewellery, vitamins and supplements, medicines, toiletries, swimwear or lingerie and adult toys if the product or item has been used, if the hygiene or product seal has been broken or is no longer in place or if the product is not in its original packaging (if applicable), unless faulty.
Items of footwear and/or clothing must be unworn, unwashed with the original labels attached. Items of homeware including bedlinen, mattresses and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights. Also, footwear must be tried on indoors.
Click here to view our full Returns Policy.
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The 3500 Sovereign Mattress offers a medium firm feel with an approximate depth of 29cm, delivering a premium sleep experience with noticeable quality from the very first night. Crafted using a high count of individually fabric-encased pocket springs, this mattress features a substantial memory foam comfort layer combined with supportive reflex foam and enhanced edge support, all finished in a quilted cashmere soft-touch knitted fabric padded with polyester for a more plush, cushioned feel. The memory foam gently contours to your body, helping relieve pressure and provide a comfortable, supportive surface, while reflex foam adds responsive rebound to support healthy spinal alignment. The quilted polyester padding creates a smoother, more inviting sleep surface and encourages airflow, helping regulate temperature more effectively than traditional tufted designs. Individually working pocket springs respond to your body weight to target pressure across 7 key areas, supporting back, side, and combination sleepers while absorbing noise and vibration to minimise disturbance from partners or pets. Hypoallergenic and allergen-free, this fire-retardant mattress is manufactured in the UK to meet British safety and quality standards. Single-sided mattress; rotating periodically helps the mattress settle evenly and maintain consistent comfort across the full sleep surface.
DELIVERY: Delivered to the room of choice. Delivery Date and time slot is agreed directly with you by the courier prior to delivery. Available in the following sizes, mattress depth 29cm/11.4” all sizes. 3FT Single Mattress W 92 cm x L 193 cm, 4FT Small Double Mattress W 123 cm x L 193 cm, 4FT6 Double Mattress W 137 cm x L 193 cm, 5FT King Mattress W 153 cm x L 203 cm, 6FT Super King Mattress W 183 cm x L 203 cm. Dry Clean Only.
For hygiene reasons, we cannot offer returns or refunds on fashion face masks, cosmetics (including beauty products), pierced jewellery, vitamins and supplements, medicines, toiletries, swimwear or lingerie and adult toys if the product or item has been used, if the hygiene or product seal has been broken or is no longer in place or if the product is not in its original packaging (if applicable), unless faulty.
Items of footwear and/or clothing must be unworn, unwashed with the original labels attached. Items of homeware including bedlinen, mattresses and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights. Also, footwear must be tried on indoors.
Click here to view our full Returns Policy.
Somnior
Sovereign 3500 Pressure Relief Cushioned Support Mattress Medium Firm
“Refund was approved and back in my account the same day.” - Deliver+ customer
We Think You'll Like
Sponsored Products
Protect Your Purchase?
Extend your warranty and protect your purchase against accidental damage and defects.
Protects your new Sovereign 3500 Pressure Relief Cushioned Support Mattress Medium Firm against breakdowns and faults once the manufacturer's warranty period is over.
Covers issues not included in your manufacturer's warranty, such as accidental damage or theft.
Get a replacement or a cash refund up to the full amount you originally paid for it.
FAQs
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XCover's simple, fast and stress-free repair and replacement process delivers peace of mind if your item is stolen or has damages or defects that aren't covered by the manufacturer's warranty. XCover’s easy, digital process is simple with quick payouts on approved claims.
Before submitting a claim, you need to gather all the details and documents to support your claim. This helpful article has a guide to what documents you may need based on your claim reason.
When you're ready to submit your claim, log in to your XCover Account, select the XCover Protection you would like to claim for and then select ‘Make a Claim’.
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For more information about claims submission, please check XCover Help.