Haven't had any experience with hammocks but we've just had a rough time with out portacot over Christmas now that DS doesn't use the bassinette insert anymore as DH couldn't lean over to lay him down - he'd have to drop him the last few centimetres, which would wake him right up. Plus, it was soooo much softer than his cot mattress he'd wake up every two hours or so. Which meant I was resettling him every time and got NO SLEEP AT ALL. Not a nice time, I can tell you! Before now, we've used the bassinette insert and loved it (DS slept as normal). We had a baby Pod when DS was little, which was great (Love 'n' Care - for carrying as well as sleeping so very useful) and lots of friends used their prams as beds when travelling. Not sure how a twin pram would go though. HTH