Slipper

Slippers were items of comfortable human footwear usually worn indoors, and often in conjunction with pyjamas or a dressing gown.

Passengers aboard Crusader 50 shuttle buses received complimentary slippers. (TV: Midnight)

During her travels with the Tenth Doctor, Donna Noble bought Nerys a pair of "tacky" slippers for Christmas. (COMIC: Frosty the Snowdemon)

Behind the scenes
Dez Skinn wears platform slippers (comically labelled as such, as though this needed pointing out) as he goes to bed in the comic story The Origin of Doctor Who Magazine, printed in DWM 544 to celebrate the 40th anniversary of Doctor Who Magazine. However, due to its parodical nature, this story is not currently considered a valid source for in-universe articles by our Wiki.