Just got a new Jayco and it does not come with a ladder to the over/cab bunk. Called the factory and was told it does not come with one and suggested I "jump" up to get into it. At age 83 I don't do...
We bought one when we had our Class C. It has really wide treads so doesn't hurt feet near as bad. We traded our Class C while we were in California and the ladder had been left at our home in Washington. So I guess what I am saying is we NEVER used it once. So don't rush to get one.