Ulleval Hotel

Just so you are warned: this is a hospital hotel. So the facilities are such. Handicap bathrooms, and the rooms are rather quaint. No, it doesn't look like a hospital room/ward, but it doesn't have the hotel vibe either. But the rooms are spacious as it is meant to house 1 patient and caregiver. And be prepared to dine with a lot of mothers and fathers carrying their newborn with them during breakfast.

If it is your first time in Oslo, then do yourself a favor and stay somewhere else. You will have a hard time finding this hotel on foot or by public transport. Taxi is highly recommended (Google maps got the location of this place totally wrong). But if you are a seasoned Oslo visitor, this place is a gem. This is probably the cheapest accommodation in Oslo unless you opt for a shared room in a dormitory.