The Common Marbled Carpet (Chloroclysta truncata) is a variable moth - it comes in different shades of colour.
A dark individual in brown Wingspan: 24-30 mm
A faded individual with pinky orange UK flight time: May-Nov.
Common Marbled Carpet typical stance
Common Carpet moth (Epirrhoe alternata)
Wingspan: 20-25 mm
UK flight time: May-Sep.
Wingspan: 19-21 mm
UK flight time: Jul-Aug.
Least Carpet (Idaea vulpinaria) -- more a Wave than a Carpet