@Marie1743 In most cases, the nightly rate of entire house are more than the combined total of each bedroom rented separately with common shared spaces.
i just looked into your listings. Your listings are in Lake Tahoe. Most people go there for vacation. And they normally go there in family or a group. It is probably more suitable for entire house renting.
If it is a 4-bedroom house in a big city, more likely guests are those business travelers. They may just need a room. Separate listings for each room are more suitable in this case.
Or a combination of entire house listing with individual room listings have linked calendars.