Molly, our oldest could jump on the bed and couch by the time she was about 3 month.
Petey, our 5 month old doesn't even attempt to jump up onto the furniture. He can sleep in the bed all night with no accidents, but he can't get ON TO the bed. He was/is VERY slow at potty training, although he's gotten MUCH better, but, he just doesn't seem to catch on as quickly as molly did.
Thanks in advance!