My 6 month old baby boy is sleeping well in his Amby hammock bed but wondering whether to transition to cot now or wait until he's completely outgrown the hammock. The guidance says they are okay to use until 12 months, we just need to buy the more heavy duty spring. Does anyone have experience transitioning later? I have read old threads with most babies moving from hammock to cot at 6 months. Thanks for any advice!