Since we had looted all the monsters we fought and gathered quite a bunch of materials, travelling back to the entrance would take its time. Although the bag Lisa gave me could store far more than it looked like, to get something in there it had to fit through the opening. So putting something like a bed in there wasn't possible. Would have been a nice cheat to have a comfy room with you all the time… Or maybe even a professional cook.
Monsters spawned only in the rooms which connected to the corridor, and not the corridor itself. Because of this, travelling in and out could easily be done. If that weren't the case we wouldn't have gathered so much loot in the first place, defending ourselves with so much package on us would've made things unnecessarily difficult.