Lucid 4-Inch Memory Foam Mattress Topper - Full Size, Cooling Gel, Ventilated

Upgrade your mattress with the LUCID 4 Inch Gel Memory Foam Mattress Topper. This is LUCID's thickest topper, adding a soft, cloud-like layer without sacrificing support. The memory foam is infused with cooling gel to help distribute heat for a more comfortable sleep temperature, while a ventilated design promotes airflow for a fresher feel night after night.

Plush comfort meets practical design

Four inches of plush memory foam create a light, airy, sink-in sensation that adapts to your body’s curves. The foam responds to your weight and shape, helping to ease pressure on shoulders and hips as you move through the night.

• Ultra plush feel with a responsive surface for everyday comfort
• Cooling gel infusion helps regulate temperature for better nights
• Ventilation channels improve airflow and breathability
• CertiPur-US certified foam emphasizes safety and quality
• Choose your level of plushness with 2, 3, or 4 inch profiles
• Ships compressed in a box for easy setup; decompresses in 24-48 hours
• Pair with a waterproof mattress protector for best results

Real-life use and practical benefits

Imagine upgrading a dorm room or a guest bed: the topper instantly softens a mattress while maintaining support where you need it. The gel-infused foam helps manage heat, so you wake up with a cooler, more comfortable feel. The ventilated design supports steady airflow, contributing to a more refreshing sleep surface.

• Ideal for dorm rooms or guest bedrooms where you want a quick bed upgrade
• Cooling features help you stay comfortable through warm nights
• A soft yet supportive layer that adapts as you move

Setup, care, and warranty

The topper ships in a box; simply unroll it and allow 24–48 hours to fully decompress. It is backed by CertiPur-US certified foam and a 3-year limited warranty. For the best experience, use with a waterproof mattress protector and follow care recommendations from LUCID.