Hi, DD1 was 19.5 months old when dd2 was born. We had dd2 in a bassinett in our room for all sleeps untill she looked like she was getting too big. Dh found an old cot going to hard rubbish (i know) and he cut it down to make a toddler bed, which dd1 slept in from 2 years til 2years 9 months when we got a single bed for her.

We are in the same situation again. DD2 is still in the cot and when dd3 comes along in october DD2 will be 22 months ish. I got a 2nd hand cradle off ebay... its longer than our bassinett.... so dd3 can stay in it for as long as possible while we transition dd2 out of the cot into the toddler bed.

We had a few issues with transition with dd1 into the toddler bed. We just started with her day sleeps then onto her nights... she would most of the time get out but consistancy is the key. Yes it is hard work with the nb in the house but we also didnt want to be getting another cot when we knew this would have to happen sooner or later.

HTH!