i've just gone back to wrapping Samuel, Ali - after not being wrapped for ages - and I use a single cot sheet currently so that I can wrap tight and tuck under the shoulder blade area as the lifting the feet releases anything below the waste (plus sheet - cooler for summer - although muslim would be even better again although I don't know whether bought ones come big enough it might be better, as others have suggested, to buy some by the metre).
Will have to try the wrapping technique above and see if that prevents the odd escape I get. Cause I too get worried about the up around the neck/face thing on the occasions he escapes.

I only wrap during the day though and use a sleeping bag at night - the flayling arms don't seem to be as much of a disturbance after dark.LOL