They are prefolds and covers...there is a section for those here viewforum.php?f=10
basically prefolds can be used by themselves if you fold them prefold into three so that its a pad like you aid and then lay it in the cover, you can either use a flushable liner or a fleece/minkee liner which will keep you babies bottom dry. Becuase prefolds are flat nappies and dont have elasticed leg bits you can find that they leak onto the covers more than a fitted nappy, When i used prefolds on my daughter I often folded them onto her and fastened with a nappy nippa as i found this offered better containment, here is a link to show you how...http://diaperpages.com/pf_folds.php
I dont think that just a prefold and a cover would be enough for nighttime though without some kind of booster of a deddicated night nappy, alot of us use Weenotions night notions for nights or bedbugs and these often come up in the classifieds...
I did find that with prefolds I had to change more often than with our fitted nappies becuase they are only cotton where as we use bamboo fitted nappies but there is no reason you cant just manage with prefolds during the day
Also with the wraps, there are lots of different types of wraps, we found motherease wraps (rikki or airflow) better than cotton bottoms wraps and again these can be picked up cheaply in the classifieds section...then there is weenotions where you can buy pretty embroidered ones etc...
ETA at 10 months you probably need a large
Hope that helps!