Primesoft King Size Mattress Topper — Thick Pillow-Top, Waterproof, 21" Deep Pocket Breathable Pad

PRIMESOFT King Size Mattress Topper is a plush, breathable pillow-top pad with a waterproof layer and up to 21-inch deep pockets that fit most mattresses.

This topper combines a soft 70% rayon/30% polyester cover with 100% down-alternative fill to add cushioning, regulate surface temperature, and protect your mattress from spills. Designed with a wavy stitch pattern and reinforced deep pockets, it slips over mattresses from about 8" to 25" thick. The construction balances softness and airflow while a discreet waterproof barrier defends against accidents and liquids.

How does this topper improve nightly comfort?

The pillow-top layer evens out pressure and supplies an extra cushion without dramatically changing mattress firmness. Breathable rayon-blend fabric and lofty down-alternative fill help air circulate so you sleep cooler than on a simple pad. It’s a practical way to refresh an older mattress or to add a softer surface to a firmer one.

• Thick pillow-top loft for added cushioning
• Down-alternative fill for resilient softness
• Breathable fabric blend to reduce heat buildup

Will it protect against spills and stains?

Yes — the topper integrates a waterproof layer that resists liquid penetration, keeping the mattress below dry from common accidents or small spills. The surface remains comfortable and breathable while liquids bead up on the barrier instead of soaking through. For heavier or prolonged exposure, use an additional fitted protection layer.

• Waterproof backing prevents liquid transfer to the mattress
• Surface designed to remain comfortable and dry to the touch
• Easy-to-clean material reduces stain risk

How easy is it to fit and maintain on different mattress sizes?

PRIMESOFT’s elasticized skirt fits mattresses ranging roughly 8" to 25" thick, making it compatible with most pillow-top, hybrid, and memory foam beds. The wavy stitching keeps the fill evenly distributed, and the whole topper is machine-washable at low temperatures for straightforward care. Low-heat tumble dry preserves loft and extends usable life.

• Deep elastic pockets fit mattresses up to 21" (compatible with up to 25" thickness)
• Stitched baffle helps maintain uniform fill placement
• Machine wash cold and low-temperature drying recommended

Is this a good option for sleepers who are warm at night?

The rayon-rich cover and airy down-alternative filling promote airflow and moisture wicking better than many synthetic-only toppers. While no textile eliminates heat entirely, this combination is intended to feel cooler than dense foams. Layering with breathable sheets and mattress protectors will further improve temperature regulation.

• Rayon blend cover provides a cool-to-the-touch surface
• Lofty fill encourages airflow through the pad
• Lightweight construction reduces trapped heat compared with dense foam

Who this is for: Ideal for anyone seeking added cushioning and spill protection without replacing their mattress — from people wanting a softer sleep surface on a firm bed to parents and pet owners who value a washable, waterproof barrier. It suits couples, guest rooms, and bedrooms where a balance of comfort, breathability, and easy maintenance is desired.