LEGO Harry Potter Years 5-7

Full list and locations:

Harry (Pyjamas): Gryffindor common room - darts

Ginny (Pyjamas): Gryffindor common room - hitting the painting next to the exit

Ron (Blue Pyjamas): Bookcase outside the Hufflepuff common room

George (Pyjamas): Weasley's Wizard Shop after beginning Deathly Hallows Pt1

Fred (Pyjamas): Weasley's Wizard Shop after beginning Deathly Hallows Pt1

McGonnagal (Pyjamas): Gryffindor Common Room. Use the Deluminator to take the light by the door over to the painting on the left side of the room

Neville (Pyjamas): Divination Room after assembling the Giant cup of the the broken smaller ones

Slughorn (Pajamas): Located in "Out of Retirement" for destroying the 5 gnomes (all before you go in the house): One is next to the fountain, another all the way at the bottom of the road in front of a gate, a third on top of the garage, the fourth is in a key vault behind dark magic, and the last one is behind the other dark magic gate.

You must unlock the token AND purchase it at Madame Malkin's shop to get the achievement.

I take absolutely no credit for the list; thanks to WaHammy's guide on Xbox360achievements.org for the information.

further to one eyed tigh 's sollotion videos yea for locations of characters here are some videos to help you i did not make these videos all credit goes to EscherMedia the video poster they are set in zones making it easyer to follow

If you were wondering which characters have pyjamas, here is the complete list:

Harry
Ron (listed as "Blue Pyjamas")
Fred
George
Ginny
Slughorn
McGonagall
Neville

As soon as you purchase the last character needed the achievement will pop.