I've had a few request for this set of bunk bed to be posted. Hope Bayler has retired and gave me permission to post her creations.
I did do a lot of work on this set, the original files had a lot of BHAVS that were never called, and other miscellaneous unnecessary items. I also made some changes to her mesh.
The top bunk is use able, but the Sims get into the top bunk to access it by way of the bottom bunk, (you do need to click the top mattress for them to use it) then they snap up to the top bunk.
I want to thank Hope for allowing me to post her creations.
The top bed and frame are $600 and the bottom mattress is $5 both are found under Beds. I set the comfort and energy to approximately 10, by way of the BCONs.