Sealy Alston Gel Advantage Pillow Top Mattress

Comfort made simple with the Sealy Alston Pillowtop Advantage Mattress! With cooling gel properties and Sealy's unique spring system, you can drift off to sleep in dream-like comfort.

Top-rated!

Here at Mattress Online, we've given this mattress our own stamp of approval as it's one of our Top Picks for 2025! We're confident you'll love this mattress and everything it has to offer, so why not treat yourself today.

Geltex layer

This mattress features a breathable layer of Geltex. This clever mix of gel and foam adapts to your body throughout the night to encourage a comfortable rest. The flexible and spring-back structure of Geltex helps it respond to your body movements and equally distributes your weight. Smartly reducing built up pressure and helping to better align your spine for a rejuvenating slumber. Highly breathable, Geltex operates with an open cell structure that allows greater airflow within the mattress, promoting a fresher feel.

Cosy support

Sealy's exclusive PostureTech Core Support spring system gives you the support you crave. The bespoke springs have a unique design that provides long-lasting, deep-down support. They react to your body weight and movement for targeted support where you need it most.

This mattress has a medium firmness. Get all the support you need without compromising on the cosy comfort we all enjoy!

If this firmness isn't for you, check out the Claremont Memory Advantage Mattress by Sealy for a firmer feel.

Improved durability

Along the edge of this mattress is Sealy's smart Edge Guard technology. Formed with high-density foam that is placed around the border of the mattress. It works to extend the sleep surface whilst improving the durability of the mattress. The Edge Guard technology sits alongside the spring system to provide greater stability to the whole mattress.

A win for the environment

Great news! This mattress is 100% recyclable at the end of its life. So, you will never have to worry that this mattress will end up in a landfill. The Alston also comes with a 5 Year Guarantee , Sealy has got you covered during this period.