Clusterfull Mattress Topper - King Size

Transform your nightly rest with the Clusterfull Mattress Topper — King Size. Designed with deeply filled, individual cassette pockets, each chamber is generously stuffed with 100% Smartfil fibres to deliver targeted support, enhanced loft, and a plush, inviting feel right where you need it.

The result is a cooler, fresher sleep surface thanks to a breathable 100% cotton cover that stays light and airy across the seasons. Thanks to the innovative cassette construction, the fill remains evenly distributed, so you enjoy consistent comfort without sag or lumpiness as the night goes on.

Key benefits

• Independent cassette pockets maintain consistent loft and support across the entire topper.
• 100% Smartfil fibres provide resilient softness with quick recovery for lasting comfort.
• Breathable cotton cover creates a fresh, temperature-balancing layer for year-round comfort.
• King Size design delivers generous coverage, creating a cohesive sleep surface on standard king mattresses.

What problems does it solve?

If your mattress lacks that extra cushion or you wake with stiffness, the Clusterfull topper adds a plush, supportive layer that helps align the spine and ease pressure points. The cassette pockets prevent the filling from shifting, ensuring a smooth, even surface night after night.

Care and maintenance

• Spot clean using a damp sponge on localized soiling
• Do not machine wash
• Do not bleach
• Do not dry clean
• Do not tumble dry

Who is this for?

Ideal for sleepers who want a cooler, more supportive topper that adds loft without changing the overall feel of their bed. It's a great refresher for an older mattress and a luxurious, breathable upgrade for a new one, offering a consistently comfortable surface across the top layer.