Niagara Sleep Solution King Ultra Soft Mattress Topper — King Size, Cooling Bamboo-Rayon, Deep Skirt (8–21 in)

Niagara Sleep Solution King Ultra Soft Mattress Topper is a bamboo-rayon pillow-top pad that adds cloud-like softness, cooling performance, and extra support to a king mattress (78×80 in).

This king-size topper uses a 600 GSM blend of 7D hollow and 3D fine fibers inside a 300-thread-count rayon-derived-from-bamboo cover to deliver a gentle, breathable surface that stays cool for hot sleepers. Designed to fit deep mattresses, the elastic skirt stretches to accommodate mattress depths from 8 to 21 inches and the whole pad is machine washable and OEKO-TEX STANDARD 100 certified.

How does this topper help me sleep cooler at night?

The bamboo-derived rayon cover and open hollow fibers promote airflow and wick moisture away from the body, helping surface temperature feel cooler. The fiber blend resists trapping heat the way dense foams can, so sleepers notice less overheating without heavy chemical cooling agents.

• Breathable 300 TC rayon-derived-from-bamboo cover for moisture wicking
• 600 GSM filling: 7D hollow + 3D fine fiber blend for airflow
• Lightweight construction avoids heat retention common in memory foam

Will this topper fit my thick mattress and stay in place?

The Niagara King topper includes an elastic skirt rated at 150 GSM that stretches to fit mattresses between 8 and 21 inches deep, keeping the pad secure on high-profile beds. Puffy construction and the deep pocket design reduce shifting so the topper stays aligned sleep after sleep.

• Deep elastic skirt fits 8–21 in mattress depths
• Full king dimensions: 78×80 inches for edge-to-edge coverage
• Light, removable design that lays flat without heavy adhesives

How should I care for and set up the mattress topper?

The topper ships compressed; simply unpack, shake and pat, then allow up to 48 hours to loft fully. It is machine washable and retains its properties through repeated cleaning—lab-tested to remain effective for up to 50 washes—making upkeep straightforward for busy households.

• Ships compressed; shake, pat and allow 48 hours to fully expand
• Machine washable; tumble dry low for about 20 minutes to speed lofting
• Durability tested: retains properties through up to 50 wash cycles

What materials and safety certifications should I know about?

The cover is made from rayon derived from bamboo with a 300 thread count, and the fill is a 600 GSM blend of 7D hollow and 3D fine fibers for resilient cushioning. The topper carries OEKO-TEX STANDARD 100 certification (No. 15.HCN.57692), and the construction avoids latex and formaldehyde-based finishes.

• Cover: 300 TC rayon-derived-from-bamboo for softness and breathability
• Filling: 600 GSM (7D hollow + 3D fine fiber) for cloud-like cushioning
• Certified OEKO-TEX STANDARD 100, free from certain harmful substances

Who is this for: The Niagara Sleep Solution King Ultra Soft Mattress Topper is suited for hot sleepers who want an immediate, non-invasive way to soften a firm mattress, people seeking hypoallergenic, breathable bedding materials, and anyone with a deep or pillow-top mattress looking for a secure, machine-washable cover. It’s ideal for couples who need full king coverage and users who prefer a plush, lightweight topper without memory foam’s heat retention.