Twin-width options in the results appear as 38 inches or 39 inches; lengths shown include 74, 75, and 80 inches. Thickness for the twin listings is consistently 6 inches.
The listings show a mix of constructions: all-foam builds (memory foam, gel foam, high-density foam), hybrid designs that combine foam with innersprings, and mattresses with innerspring cores such as Bonnell coils or pocket coils.
Most listings describe medium to medium‑firm comfort. A few specify medium‑firm or medium‑soft, with one listing noted as medium‑soft.
CertiPUR‑US certification is mentioned for several mattresses. One listing also references Oeko‑Tex Standard 100 in addition to CertiPUR‑US.
Weights in the results vary widely, roughly from about 20.7 pounds up to about 61.3 pounds, depending on construction and materials.
Cooling features include gel‑infused foam, breathable or Tencel covers, and open‑cell or airflow designs. Pressure relief is provided by memory/gel foam layers and foam comfort layers that contour to the body.