In the comparison between the Sweet Zzz Mattress Topper and the LUCID 4 Inch Mattress Topper, personal preferences will play a significant role. However, considering its plush feel, cooling properties, and fair price point, Sweet Zzz stands out as a more universally appealing choice. The LUCID Topper, with its unique combination of down-alternative and memory foam layers, caters to a specific niche of sleepers but may not offer the same quality or comfort as Sweet Zzz. Overall, Sweet Zzz provides a better combination of quality, comfort, cooling, and price, making it the superior choice in this comparison.