We are about to move house. We have two DS's and the long term aim was to put them in bunk beds. DS1 is almost 4. DS2 is 14mo. Currently DS2 comes in my bed from his first wake up, maybe 10/11pm and the co sleeps be remainder of the night. DS1 is in toddler bed and sleeps all night. DH is on camp bed downstairs 
I'm thinking of putting them straight into bunk beds. The Ikea Kura bed hack, so it's a very low bunk and the bottom bunk is basically on the floor. The thinking being we save space in their room immediately and DS2 isn't even really sleeping in his cot anyway. I could get in his bed if needed and DH can finally get back into a bed with me (when I'm not with DS2). Is this crazy? Has anyone else put such a little one into a proper bed?