ViscoSoft 4 Inch Pillow Top Memory Foam Mattress Topper Full XL

In this review of the ViscoSoft 4 Inch Pillow Top Memory Foam Mattress Topper Full XL the bottom line is clear: this topper is best for sleepers who want a plush, pressure-relieving surface and improved temperature regulation without replacing their mattress. The hybrid design pairs gel-infused memory foam with a thick pillow-top cover made of Tencel, and the result is an immediately noticeable softness that relieves hip and back discomfort while controlling moisture. Setup is simple and the construction feels built to last, making it a solid upgrade for older or too-firm beds.

Key Features

• 4 in hybrid construction: Combines gel-infused memory foam and a pillow-top cover to deliver pressure relief and a plusher sleep surface right away.
• Tencel cover: The silky Tencel fiber cover boosts breathability and moisture-wicking so sleepers feel cooler and less clammy at night.
• Cooling gel foam: Gel infusion in the memory foam helps reduce heat retention compared with standard foam for a cooler feel for many users.
• Recycled fill: The pillow-top contains over five pounds of recycled ocean plastic fill, adding plush loft while using recycled materials.
• Secure fit: An 18 in skirt with reinforced elastic and four corner straps keeps the topper anchored to the mattress and reduces shifting.
• CertiPUR-US certified foam: Foam meets independent standards for emissions and durability, providing peace of mind about materials used.

Who It's For

This topper is well suited to side and combination sleepers who want extra cushioning for hips and shoulders and who appreciate a plush, pillow-top feel over a supportive base. Couples benefit from the memory foam's motion absorption, and those replacing or rejuvenating an older mattress will find the 4 in thickness makes a meaningful comfort improvement.

Sleepers who run very hot or who prefer a very firm, responsive surface may want to look elsewhere; while the gel infusion and Tencel cover improve temperature regulation, some users report mixed results on heat retention. Shoppers seeking an ultra-firm or latex-like quick response should consider different materials.

Pros & Cons

Pros

• Very comfortable, plush feel that many describe as like sleeping on a cloud, improving sleep quality and easing hip or back pain.
• Good temperature control for a memory foam product thanks to gel infusion and a breathable Tencel cover.
• Secure 18 in skirt and corner straps keep the topper in place on deep mattresses.
• Thoughtful eco choice with recycled ocean plastic fill in the pillow-top and CertiPUR-US certified foam.

Cons

• Some customers note an initial chemical odor on unpacking and mixed experiences with heat retention in warm environments.
• Its very plush profile is not ideal for sleepers who prefer a firm, highly responsive surface.

Specifications

Product type	4 in pillow-top memory foam mattress topper
Size	Full XL
Cover material	Tencel fiber pillow-top
Core material	Gel-infused memory foam (CertiPUR-US certified)
Skirt depth	18 in with reinforced elastic
Eco fill	Over 5 lb recycled ocean plastic in pillow-top
Setup	Ships compressed; unroll and attach corner straps

Our Verdict

The ViscoSoft 4 in Pillow Top Memory Foam Topper is a strong choice for anyone who wants to add plush comfort, pressure relief, and better motion isolation to an existing mattress without a full replacement. It pairs breathable Tencel and gel-infused foam for improved temperature control and includes thoughtful design details like an 18 in skirt and recycled fill, making it a good value for sleepers seeking comfort and eco-minded features.

Frequently Asked Questions

Will this topper fit deep mattresses?
The topper includes an 18 in skirt and reinforced elastic designed to fit deep mattress profiles and keep the topper secure.

Does it sleep hot?
The gel-infused foam and Tencel cover reduce heat buildup for many users, though some report mixed results with heat retention depending on personal sleep temperature.

Is the foam safe?
Yes; the memory foam is CertiPUR-US certified, and the pillow-top adds recycled fill for an eco-conscious design.