Book an apartment or home
Rentals are cheaper than hotels. You would go out for dinner, and there's plenty of choice to do so in Bern. Of course you can cook your own meals as well. There are a lot of supermarkets in Bern (look for Migros and COOP) that make shopping and cooking part of the fun.
Find an apartment or holiday home in or near Bern. The best price is guaranteed. Free public transport is included. Please see the e-domizil website to find properties:
www.e-domizil.ch/holiday-houses/ch/berne/bern/1398/1037694/