Travel to Sri Lanka: What it's like to visit now during the Covid pandemic
https://edition.cnn.com/travel/article/sri-lanka-travel-covid-intl-hnk-cmb/index.html
I think it's the hardest regulation that everyone under isolation are not allowed to go out from each room. If they are required to wear masks and to have individual meals without chatting, they should be allowed to walk inside the hotel.