I can imagine walking into the hufflepuff common room and just having to duck through the surprisingly architecturally sound pillow fort/maze and all the hufflepuffs having a big sleepover in the common room with a huge supply of butterbeer from the houselves
I can imagine a slytherin cuddled up with a nice hot coffee and refusing to remove themselves from their bed to go to class on a cold winter's morning and laying in bed cuddled with their roommates watching netflix and eating their weight in chocolate frogs
I can imagine a ravenclaw skipping class for the finale of their favorite show snuggled into five duvets and hugging their geeky stuffed grumpycat
I can imagine walking into the common room and being immediately overwhelmed by the gryffindors littered across the floor on blankets because yesterday they had stayed out and for a quidditch match and almost the whole of gryffindor caught a cold so they collectively skipped and are snuggled together for the most part peacefully with short pauses for pillow fights