Twilight Pajama Pants

twilight
the diffused light from the sky when the sun is below the horizon but its rays are refracted by the atmosphere of the earth
the time of day immediately following sunset; "he loved the twilight"; "they finished before the fall of night"
The period of the evening during which this takes place, between daylight and darkness
A period or state of obscurity, ambiguity, or gradual decline
The soft glowing light from the sky when the sun is below the horizon, caused by the refraction and scattering of the sun's rays from the atmosphere
dusky: lighted by or as if by twilight; "The dusky night rides down the sky/And ushers in the morn"-Henry Fielding; "the twilight glow of the sky"; "a boat on a twilit river"

pajama
Pajamas, also spelled pyjamas (see also spelling differences) can refer to several related types of clothing. The original paijama are loose, lightweight trousers fitted with drawstring waistbands and worn in South and West Asia by both sexes.
a pair of loose trousers tied by a drawstring around the waist; worn by men and women in some Asian countries
(usually plural) loose-fitting nightclothes worn for sleeping or lounging; have a jacket top and trousers

pants
Trousers
Underpants
bloomers: underpants worn by women; "she was afraid that her bloomers might have been showing"
Rubbish; nonsense
(pant) breathe noisily, as when one is exhausted; "The runners reached the finish line, panting heavily"
(pant) the noise made by a short puff of steam (as from an engine)