A short diversion from your Traws Eyri route, just north of Nant Ffrancon, will take you to Ogwen Valley Bunkhouse. You can book this cosy, comfortable bunkhouse by the bed, the room or take over the whole place, (it sleeps 16).
With a well equipped kitchen, underfloor heating, comfortable beds, a drying room and secure bike storage, you should have everything you need for a relaxing stop-over. BYO sleeping bag.
Find out more about Ogwen Valley Bunkhouse