Costco

Filter options
Great savings on exclusive Sealy Posturepedic collection

Great savings on exclusive Sealy Posturepedic collection

View Product
Save up to 25% on Sealy Posturepedic

Save up to 25% on Sealy Posturepedic

View Product
Up to 40% off

Up to 40% off

View Product
Great savings on Sealy

Great savings on Sealy

View Product
Super savings on Sealy

Super savings on Sealy

View Product
Festive Deals – up to 40% off

Festive Deals – up to 40% off

View Product
Big savings on Sealy

Big savings on Sealy

View Product
25% off mattresses and 20% off bases and headboards

25% off mattresses and 20% off bases and headboards

View Product
Up to 40% off selected Sealy mattresses

Up to 40% off selected Sealy mattresses

View Product
Save up to £300 on Sealy Posturepedic

Save up to £300 on Sealy Posturepedic

View Product
Huge Savings acrosss Sealy Products

Huge Savings acrosss Sealy Products

View Product
Savings on Sealy Products

Savings on Sealy Products

View Product

Elevate Ultra

A sleep system designed to maintain your body’s natural alignment

View The Range

Customer Reviews

Review 2-Julie

Customer Reviews

"Fabulous mattress. Delivery exactly as promised and old mattress taken away without any issue.
Sales staff were really efficient and friendly and the delivery team were great. All round good experience".

Julie

Group 12-Mattresses Taxonomy

Kingsize mattress
dimensions

A double size mattress is 135cm wide and 190cm long (4ft 6ins wide and 6ft 3ins long). A double size bed is ideal for two people and fit in most bedrooms. If you’re looking to maximise space in your bedroom, try a double ottoman bed for extra storage.