Malouf Sleep Isolus Down Alternative Mattress Topper
Best plush upgrade for sleepers seeking hypoallergenic softness.
This topper adds a plush, cloud-like layer to any sleep surface without the allergens or odors of traditional down. Its baffle-box construction keeps the fill evenly distributed, ensuring consistent support and comfort throughout the night.
$169.99
at
Mattressstorewa
More Isolus options
Who it's for
- Allergy sufferers seeking a soft, feather-free sleeping surface
- Restless sleepers who need their bedding to stay perfectly aligned
- Hot sleepers looking for consistent cushioning without heat-trapping foam
Who should skip it
- Individuals requiring significant orthopedic support or pressure relief
- Low-maintenance owners who prefer a simple set-and-forget bedding arrangement
- Parents or pet owners needing a barrier against accidental spills
Performance breakdown
Loft consistency
Baffle-box construction keeps the fill evenly distributed without annoying flat spots.
Breathability
The 100% cotton shell effectively prevents heat buildup during the night.
Allergen resistance
Synthetic fill provides a sneeze-free alternative to traditional down bedding.
Surface stability
Elastic anchor bands hold the topper firmly, though deep mattresses may strain.
Plushness factor
Three inches of fill creates a soft, cloud-like landing for sleepers.
Durability
Quality stitching ensures longevity, though loft will naturally compress over time.
Key Specs
Thickness
3 inches
Fill Material
Down Alternative
Cover Material
100% Cotton
Thread Count
250
Construction Type
Baffle-box
Hypoallergenic
Yes
Attachment Type
Elastic anchor bands
Warranty
3 years
Know before you buy
Still have a question?
Ask Metto anything about the Malouf Sleep Isolus Down Alternative Mattress Topper before you decide.
