Finally Kyvin is upgraded to his new twin bunkbed. The twin mattress has been in Kyvin's room for about one year, we didn't buy him the bed frame before because we thought that he might fall. We planned to have Kyvin sleep on the twin mattress before Kayla was born, but he was very attached to his crib and didn't want to change. Now we bought the bed frames for him, and he was very excited about the new bed, and has no problem giving up his crib to Kayla.